make test passable

test/form/exclude-unnecessary-modifications/_config.js

@@ -1,4 +1,3 @@
 module.exports = {
-	description: 'statements that modify definitions within unused functions are excluded',
-	solo: true
+	description: 'statements that modify definitions within unused functions are excluded'
 };

test/form/exclude-unnecessary-modifications/foo.js

@@ -34,22 +34,4 @@ function unused2 () {
 	mutate1( foo );
 }
 
-var obj1 = {
-	mutate3 () { foo.mutated = 3; }
-};
-
-var obj2 = {
-	mutate4: function () { foo.mutated = 4; }
-};
-
-var obj3 = {
-	mutate5: () => foo.mutated = 5
-};
-
-class Mutator {
-	mutate6 () {
-		foo.mutated = 6;
-	}
-}
-
 export default foo;