Analysis: Resolve unnecessary non-null assertion test type warnings

Warning Message: "Unnecessary non-null assertion (!!) on a non-null
receiver of type Xyz"

Author: ParaskP7

WordPress/src/test/java/org/wordpress/android/ui/jetpack/JetpackCapabilitiesUseCaseTest.kt

@@ -87,7 +87,7 @@ class JetpackCapabilitiesUseCaseTest {
 
         useCase.getJetpackPurchasedProducts(SITE_ID).toList(mutableListOf())
 
-        verify(appPrefsWrapper).setSiteJetpackCapabilities(SITE_ID, event.capabilities!!)
+        verify(appPrefsWrapper).setSiteJetpackCapabilities(SITE_ID, event.capabilities)
     }
 
     @Test

WordPress/src/test/java/org/wordpress/android/ui/stats/refresh/lists/sections/granular/usecases/SearchTermsUseCaseTest.kt

@@ -140,9 +140,9 @@ class SearchTermsUseCaseTest : BaseUnitTest() {
         assertThat(result.type).isEqualTo(TimeStatsType.SEARCH_TERMS)
         assertThat(result.state).isEqualTo(UseCaseState.SUCCESS)
         result.data!!.apply {
-            assertThat(this!!).hasSize(4)
-            assertTitle(this!![0])
-            assertLink(this!![3])
+            assertThat(this).hasSize(4)
+            assertTitle(this[0])
+            assertLink(this[3])
         }
     }