chore(isPromise): revert expose deferred object's promise (#78)

Author: cnishina

index.js

@@ -205,28 +205,12 @@ jasmine.Expectation.prototype.wrapCompare = function(name, matcherFactory) {
 
     matchError.stack = matchError.stack.replace(/ +at.+jasminewd.+\n/, '');
 
-    var actualValue = null;
-    var expectedValue = null;
-
-    // Check to see if the value is of type webdriver.promise.Deferred
-    // since deferred is not a promise.
-    if (expectation.actual instanceof webdriver.promise.Deferred) {
-      actualValue = expectation.actual.promise;
-    } else {
-      actualValue = expectation.actual;
-    }
-    if (expected instanceof webdriver.promise.Deferred) {
-      expectedValue = expected.promise;
-    } else {
-      expectedValue = expected;
-    }
-
-    if (!webdriver.promise.isPromise(actualValue) &&
-        !webdriver.promise.isPromise(expectedValue)) {
-      compare(actualValue, expectedValue);
+    if (!webdriver.promise.isPromise(expectation.actual) &&
+        !webdriver.promise.isPromise(expected)) {
+      compare(expectation.actual, expected);
     } else {
-      webdriver.promise.when(actualValue).then(function(actual) {
-        return webdriver.promise.all(expectedValue).then(function(expected) {
+      webdriver.promise.when(expectation.actual).then(function(actual) {
+        return webdriver.promise.all(expected).then(function(expected) {
           return compare(actual, expected);
         });
       });