No warnings

libstring/string.c

@@ -120,7 +120,6 @@ int isblank (int c) { return (c == ' ' || c == '\t'); }
 
 /* SOURCE: https://aticleworld.com/memmove-function-implementation-in-c/ */
 void* memmove (void* dest, const void* src, unsigned int n) {
-  unsigned char isCopyRequire = 0; // flag bit
   char* pcSource = (char*)src;
   char* pcDstn = (char*)dest;
   // return if pcDstn and pcSource is NULL