Revert "JS: Mark some alerts as picked up trivial-conditional"

This reverts commit 02e8959.

Author: asgerf

javascript/ql/test/query-tests/Expressions/UnneededDefensiveProgramming/tst.js

@@ -159,10 +159,10 @@
         }
     }
 
-    if (typeof x !== undefined); // $ Alert[js/comparison-between-incompatible-types]
-    if (typeof window !== undefined); // $ Alert[js/comparison-between-incompatible-types]
+    if (typeof x !== undefined);
+    if (typeof window !== undefined);
     if (typeof x !== x);
-    if (typeof x !== u); // $ Alert[js/comparison-between-incompatible-types]
+    if (typeof x !== u); // $ Alert
 
     if (typeof window !== "undefined");
     if (typeof module !== "undefined");
@@ -172,8 +172,8 @@
     if (typeof module !== "undefined" && module.exports);
     if (typeof global !== "undefined" && global.process);
 
-	u && (f(), u.p); // $ Alert[js/trivial-conditional]
-	u && (u.p, f()); // $ Alert[js/trivial-conditional] - technically not OK, but it seems like an unlikely pattern
+	u && (f(), u.p);
+	u && (u.p, f()); // technically not OK, but it seems like an unlikely pattern
 	u && !u.p; // $ MISSING: Alert
 	u && !u(); // $ MISSING: Alert