Remove prompt to exit in all programs

Signed-off-by: José Simões <jose.simoes@eclo.solutions>

programs/util/strerror.c

@@ -78,11 +78,6 @@ int main( int argc, char *argv[] )
         mbedtls_printf("Last error was: -0x%04x - %s\n\n", (unsigned int) -val, error_buf );
     }
 
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
     mbedtls_exit( val );
 }
 #endif /* MBEDTLS_ERROR_C */