e2e framework: eliminate interim sub packages

The "todo" packages were necessary while moving code around to avoid hitting
cyclic dependencies. Now that any sub package can depend on the framework, they
are no longer needed and the code can be moved into the normal sub packages.

test/e2e/framework/node/resource.go

@@ -887,13 +887,3 @@ func verifyThatTaintIsGone(c clientset.Interface, nodeName string, taint *v1.Tai
 		framework.Failf("Failed removing taint " + taint.ToString() + " of the node " + nodeName)
 	}
 }
-
-// taintExists checks if the given taint exists in list of taints. Returns true if exists false otherwise.
-func taintExists(taints []v1.Taint, taintToFind *v1.Taint) bool {
-	for _, taint := range taints {
-		if taint.MatchTaint(taintToFind) {
-			return true
-		}
-	}
-	return false
-}