LibJS: Uncomment the tests that pass now

Author: https://github.com/Cleverking2003
Commit: 1dbd264239
Pull-request: https://github.com/SerenityOS/serenity/pull/4622
Issue: https://github.com/SerenityOS/serenity/issues/4543

Libraries/LibJS/Tests/builtins/Math/Math.log10.js

@@ -1,10 +1,9 @@
 test("basic functionality", () => {
     expect(Math.log10).toHaveLength(1);
 
-    // FIXME: not precise enough
-    // expect(Math.log10(2)).toBeCloseTo(0.3010299956639812);
-    // expect(Math.log10(1)).toBe(0);
+    expect(Math.log10(2)).toBeCloseTo(0.3010299956639812);
+    expect(Math.log10(1)).toBe(0);
     expect(Math.log10(0)).toBe(-Infinity);
     expect(Math.log10(-2)).toBe(NaN);
-    // expect(Math.log10(100000)).toBe(5);
+    expect(Math.log10(100000)).toBe(5);
 });