fixup! [WIP][ASan] Interceptors for WASI

Author: kateinoigakukun

compiler-rt/lib/asan/asan_malloc_linux.cpp

@@ -83,12 +83,6 @@ INTERCEPTOR(void*, realloc, void *ptr, uptr size) {
   return asan_realloc(ptr, size, &stack);
 }
 
-#if SANITIZER_WASI
-extern "C" void *__libc_malloc(uptr) __attribute__((alias("malloc")));
-extern "C" void __libc_free(void *) __attribute__((alias("free")));
-extern "C" void *__libc_calloc(uptr nmemb, uptr size) __attribute__((alias("calloc")));
-#endif
-
 #if SANITIZER_INTERCEPT_REALLOCARRAY
 INTERCEPTOR(void*, reallocarray, void *ptr, uptr nmemb, uptr size) {
   AsanInitFromRtl();