chore: Remove test for unsupported api (#2610)

Co-authored-by: gpanshu <[email protected]>

Author: tylerjroach

aws-api/src/test/java/com/amplifyframework/api/aws/AWSApiPluginUserAgentTest.java

@@ -23,7 +23,6 @@
 import org.json.JSONObject;
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.RobolectricTestRunner;
@@ -89,28 +88,6 @@ public void tearDown() throws IOException {
         server.shutdown();
     }
 
-    /**
-     * Make an API request to the mock server and check the user agent
-     * header format on the request. Verify that the Android version is
-     * accurately reflected on the user agent.
-     * @throws Exception if API call fails or thread is interrupted while
-     *          waiting for request
-     */
-    @Test
-    @Config(sdk = 16)
-    @Ignore("minSDKVersion changed to 24 in favor of AWS Kotlin SDK dependency")
-    public void testUserAgentWithApi16() throws Exception {
-        String userAgent = checkUserAgent();
-
-        // Assert the correct format and content
-        assertNotNull(userAgent);
-        Matcher regexMatcher = USER_AGENT_PATTERN.matcher(userAgent);
-        assertTrue(regexMatcher.matches());
-        assertEquals("amplify-android", regexMatcher.group("libraryName"));
-        assertEquals("Android", regexMatcher.group("systemName"));
-        assertEquals("4.1.2", regexMatcher.group("systemVersion"));
-    }
-
     /**
      * Make an API request to the mock server and check the user agent
      * header format on the request. systemName and systemVersion not