refactoring: removed unnecessary comments

test/test_arithmeticMultiplication_Double.c

@@ -3,11 +3,11 @@
 #include "limits.h"
 
 void setUp(void) {
-    // set up code here
+
 }
 
 void tearDown(void) {
-    // clean up code here
+
 }
 
 void test_arithmeticMultiplication_doubletimesdoubleequalsdouble(void) {