Changed some code found by Clang Tidy and Coverity

core/crypto/hashing_context.cpp

@@ -103,7 +103,7 @@ void HashingContext::_create_ctx(HashType p_type) {
 }
 
 void HashingContext::_delete_ctx() {
-	return;
+
 	switch (type) {
 		case HASH_MD5:
 			memdelete((CryptoCore::MD5Context *)ctx);