Revert "Attempt to fix iOS tests on Sauce using upgraded Appium"

This reverts commit b480c8e.

Author: eriwen

karma.conf.ci.js

@@ -13,22 +13,16 @@ module.exports = function(config) {
             version: '8.4'
         },
         slIOS9: {
-            appiumVersion: '1.6.3',
             base: 'SauceLabs',
-            browserName: 'Safari',
-            deviceName: 'iPhone 6s Simulator',
-            deviceOrientation: 'portrait',
-            platformName: 'iOS',
-            platformVersion: '9.3'
+            browserName: 'iPhone',
+            platform: 'OS X 10.11',
+            version: '9.2'
         },
         slIOS10: {
-            appiumVersion: '1.6.3',
             base: 'SauceLabs',
-            browserName: 'Safari',
-            deviceName: 'iPhone 7 Simulator',
-            deviceOrientation: 'portrait',
-            platformName: 'iOS',
-            platformVersion: '10.2'
+            browserName: 'iPhone',
+            platform: 'macOS 10.12',
+            version: '10.2'
         },
         slAndroid4: {
             base: 'SauceLabs',