Removendo Caractere de String

Sábado lindo por aqui, más não devo sair apesar do dia ser propício pra isto. A semana foi de muito trabalho, prefiro
descansar e relachar, fazendo o que mais gosto, programar em Linguagem C. Vi um tópico interessante aqui no forum e me interessei, então decidi, vou criar minha versão de um programa como este aproveitando meu tempo que me sobrou.
Mais não encontrei nenhuma moleza, e foi um pouco tedioso criar
este programa e deixá-lo funcionando satisfatoriamente como ficou. O código ficou em tanto extenso por causa dos detalhes
da interface do dos, usando as funções textcolor(); e gotoxy();
Porém, saiu como esperado, funcionando muito bem, criado no eclipse e rodando sem nenhum warnings.

Veja o código abaixo:

#include <stdio.h>

#include <string.h>

#include <conio.h>

void Janela5 ( ) {

     int lin, col;

     col = 0;

     for ( lin = 0; lin <= 25 ; lin++ ) {

         for ( col = 0; col <= 80 ; col++ ) {

              gotoxy ( col , lin );

              if ( lin == 2 ) {

                   textbackground ( LIGHTBLUE );

                   printf ( " " );

              }

              if ( col == 1 ) {

                   textbackground ( LIGHTBLUE );

                   printf ( " " );

              }

              if ( lin == 25 ) {

                   textbackground ( LIGHTBLUE );

              }

              if ( col == 80 ) {

                   textbackground ( LIGHTBLUE );

                   printf ( " " );

              }

         }

     }

     textbackground ( BLACK );

}

void Remove_String ( );

int main ( );

void inicio ( ) {

     system ( "title REMOVENDO CARACTERE DE STRING" );

     int i;

     system ( "cls" );

     do {

         Janela5 ( );

         textcolor ( LIGHTRED );

         gotoxy ( 30 , 7 );

         printf ( "REMOVENDO CARACTERE DE STRING" );

         textcolor ( YELLOW );

         gotoxy ( 25 , 10 );

         printf ( "Programa desenvolvido por:" );

         textcolor ( LIGHTCYAN );

         gotoxy ( 52 , 10 );

         printf ( "Samuel Lima" );

         textcolor ( LIGHTGREEN );

         gotoxy ( 34 , 12 );

         printf ( "sa_sp10@hotmail.com" );

         textcolor ( LIGHTBLUE );

         gotoxy ( 24 , 14 );

         printf ( "DIGITE    PARA SAIR OU   PARA CONTINUAR  " );

         textcolor ( LIGHTRED );

         gotoxy ( 32 , 14 );

         printf ( "1" );

         textcolor ( LIGHTRED );

         gotoxy ( 47 , 14 );

         printf ( "2" );

         gotoxy ( 21 , 16 );

         scanf ( "%d" , &i );

         fflush ( stdin );

         if ( i == 1 ) {

              textcolor ( LIGHTRED );

              gotoxy ( 30 , 20 );

              printf ( "O ROCCO AGRADECE" );

              Sleep ( 1800 );

              exit ( 0 );

         }

         if ( i == 2 ) {

              system ( "cls" );

              Remove_String ( );

         } else {

              textcolor ( LIGHTBLUE );

              gotoxy ( 30 , 20 );

              printf ( "\aOPCAO ERRADA" );

              Sleep ( 1800 );

              system ( "cls" );

         }

     } while ( i );

}

void Remove_String ( ) {

     char str [ 20 ], subs [ 20 ], Pala_vra [ 20 ], Palavra [ 10 ], *rem_ove;

     int rem, dim, i;

     system ( "title REMOVENDO CARACTERE DE STRING" );

     system ( "cls" );

     Janela5 ( );

     textcolor ( LIGHTRED );

     gotoxy ( 28 , 3 );

     printf ( "REMOVENDO CARACTERE DE STRING" );

     textcolor ( LIGHTBLUE );

     gotoxy ( 28 , 5 );

     printf ( "Digite uma Palavra: " );

     textcolor ( YELLOW );

     scanf ( "%50[^\n]" , str );

     fflush ( stdin );

     textcolor ( LIGHTBLUE );

     gotoxy ( 28 , 7 );

     printf ( "Voce digitou ==>" );

     textcolor ( LIGHTRED );

     gotoxy ( 48 , 7 );

     printf ( "%s" , str );

     textcolor ( LIGHTBLUE );

     gotoxy ( 28 , 9 );

     printf ( "Digite um Caractere: " );

     textcolor ( YELLOW );

     scanf ( "%s" , subs );

     fflush ( stdin );

     textcolor ( LIGHTBLUE );

     gotoxy ( 28 , 11 );

     printf ( "Voce digitou ==>" );

     textcolor ( LIGHTRED );

     gotoxy ( 48 , 11 );

     printf ( "%s" , subs );

     dim = strlen ( subs );

     rem_ove = strstr ( str , subs );

     if ( rem_ove ) {

         textcolor ( LIGHTBLUE );

         gotoxy ( 26 , 13 );

         printf ( "A Palavra contem o Caractere " );

         textcolor ( LIGHTRED );

         gotoxy ( 56 , 13 );

         printf ( "%s " , subs );

         textcolor ( LIGHTBLUE );

         gotoxy ( 26 , 14 );

         printf ( "O Caractere" );

         textcolor ( LIGHTRED );

         gotoxy ( 37 , 14 );

         printf ( " %s " , subs );

         textcolor ( LIGHTBLUE );

         gotoxy ( 41 , 14 );

         printf ( "esta na posicao" );

         textcolor ( LIGHTRED );

         gotoxy ( 57 , 14 );

         printf ( "%d" , rem_ove - str );

         textcolor ( LIGHTBLUE );

         gotoxy ( 59 , 14 );

         printf ( "da Palavra" );

         textcolor ( LIGHTGREEN );

         gotoxy ( 26 , 16 );

         printf ( "Deseja remover o Caractere" );

         textcolor ( LIGHTRED );

         gotoxy ( 54 , 16 );

         printf ( "%s" , subs );

         textcolor ( LIGHTGREEN );

         gotoxy ( 57 , 16 );

         printf ( "???" );

         {

              do {

                   textcolor ( LIGHTBLUE );

                   gotoxy ( 26 , 18 );

                   printf ( "Digite [ 1 para sim ] OU [ 0 para sair ]" );

                   textcolor ( YELLOW );

                   gotoxy ( 30 , 20 );

                   scanf ( "%d" , &rem );

                   fflush ( stdin );

                   if ( rem == 0 ) {

                        textcolor ( LIGHTRED );

                        gotoxy ( 30 , 20 );

                        printf ( "O ROCCO AGRADECE" );

                        Sleep ( 1800 );

                        exit ( 0 );

                   }

                   if ( rem == 1 ) {

                        strcpy ( Palavra , Pala_vra );

                        for ( i = 0; i < dim ; i++ )

                            str [ ( rem_ove - str ) + i ] = Pala_vra [ i ] = ' ';

                        textcolor ( LIGHTBLUE );

                        gotoxy ( 24 , 20 );

                        printf ( "\aO Caractere" );

                        textcolor ( LIGHTRED );

                        gotoxy ( 36 , 20 );

                        printf ( "%s" , subs );

                        textcolor ( LIGHTBLUE );

                        gotoxy ( 38 , 20 );

                        printf ( "foi removido com sucesso " );

                        textcolor ( LIGHTBLUE );

                        gotoxy ( 30 , 22 );

                        printf ( "Veja como ficou ==> " );

                        textcolor ( LIGHTRED );

                        gotoxy ( 52 , 22 );

                        printf ( "%s " , str );

                        getche ( );

                        main ( );

                   } else {

                        textcolor ( LIGHTBLUE );

                        gotoxy ( 30 , 20 );

                        printf ( "\aOPCAO ERRADA" );

                        getche ( );

                        textcolor ( LIGHTBLUE );

                        gotoxy ( 30 , 20 );

                        printf ( "                 " );

                   }

              } while ( 1 );

         }

     } else {

         textcolor ( LIGHTBLUE );

         gotoxy ( 30 , 22 );

         printf ( "\aA Palavra nao contem o Caractere %s" , subs );

         getche ( );

         Remove_String ( );

         system ( "cls" );

     }

}

int main ( ) {

     inicio ( );

}