refactoring:remove other unreachable code

src/input.c

@@ -41,19 +41,14 @@ char getInput(){
       switch(key){
         case 'w':
           return 'u';
-          break;
         case 'a':
           return 'l';
-          break;
         case 's':
           return 'd';
-          break;
         case 'd':
           return 'd';
-          break;
         case 'q':
           return 'q';
-          break;
         case 'p':
           printf("\033[31mgame paused, p to continue");
           printf("\033[0m");