Bug 5094 - Code cleanup, patch by Zack Middleton and DevHC. Fixes unused-but-set gcc warnings

code/botlib/l_precomp.c

@@ -1698,7 +1698,6 @@ int PC_EvaluateTokens(source_t *source, token_t *tokens, signed long int *intval
 	int questmarkintvalue = 0;
 	float questmarkfloatvalue = 0;
 	int gotquestmarkvalue = qfalse;
-	int lastoperatortype = 0;
 	//
 	operator_t operator_heap[MAX_OPERATORS];
 	int numoperators = 0;
@@ -2087,7 +2086,6 @@ int PC_EvaluateTokens(source_t *source, token_t *tokens, signed long int *intval
 		else Log_Write("result value = %f", v1->floatvalue);
 #endif //DEBUG_EVAL
 		if (error) break;
-		lastoperatortype = o->operator;
 		//if not an operator with arity 1
 		if (o->operator != P_LOGIC_NOT
 				&& o->operator != P_BIN_NOT)