[Android] Move some tests to internal shell test again

Move HandleActionUriTest.java, SetDatabaseEnabledTest.java,
SetDomStorageEnabledTest.java, SetNetworkAvailableTest.java, UserAgentTest.java
from core shell test to core internal shell test.
[Android] Remove the unnecessary code in ShouldInterceptLoadRequestTest.java

As the javascript are enabled by default,
no need to set it to enable explicitly.
[Android] Remove the internal dependency in XWalkViewTestBase.java

As all internal dependency test is moved into internal test,
this code is unnecessary now, just remove it.