Add TEST_MAPPING

...and remove the broken test!

Bug: 137191822
Test: treehugger (hopefully!?)
Change-Id: I175c1262275ae95caabac32a5308fd454ae62a4d

apex/sdkext/TEST_MAPPING

+{
+  "presubmit": [
+    {
+      "name": "framework-sdkext-tests"
+    }
+  ]
+}

apex/sdkext/framework/tests/Android.bp

@@ -6,5 +6,6 @@ android_test {
         "android.test.runner",
     ],
     static_libs: [ "framework-sdkext" ],
+    test_suites: [ "general-tests" ],
     platform_apis: true,
 }

apex/sdkext/framework/tests/src/android/os/ext/SdkExtensionsTest.java

@@ -29,11 +29,6 @@ public class SdkExtensionsTest extends TestCase {
             SdkExtensions.getExtensionVersion(Build.VERSION_CODES.Q);
             fail("expected IllegalArgumentException");
         } catch (IllegalArgumentException expected) { }
-
-        try {
-            SdkExtensions.getExtensionVersion(999999);
-            fail("expected IllegalArgumentException");
-        } catch (IllegalArgumentException expected) { }
     }
 
     @SmallTest