Remove CarUiRobolectricTestRunner

Fixes: 148249036
Test: Run all tests in Robotests

Change-Id: Ib925d436c5fabc94c712fa12717b9969dbebc40b
diff --git a/car-ui-lib/tests/robotests/build.gradle b/car-ui-lib/tests/robotests/build.gradle
index 8553359..b741419 100644
--- a/car-ui-lib/tests/robotests/build.gradle
+++ b/car-ui-lib/tests/robotests/build.gradle
@@ -20,10 +20,10 @@
     repositories {
         google()
         jcenter()
-
     }
+
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:3.5.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -72,13 +72,12 @@
             includeAndroidResources = true
         }
     }
-
 }
 
 dependencies {
     implementation project(':')
     testImplementation "androidx.test.ext:junit:1.1.1"
-    testImplementation "org.robolectric:robolectric:4.0-alpha-3"
+    testImplementation 'org.robolectric:robolectric:4.2'
     testImplementation "org.mockito:mockito-core:2.19.0"
     testImplementation "com.google.truth:truth:0.29"
     testImplementation "org.testng:testng:6.9.9"