Fix URLConnectionTest for devices without full internet access.

This removes two bad tests that are covered elsewhere, using
mocks.

test_getContentEncoding() was hitting http://www.amazon.com, to see
if a URLConnection getter was working. That getter is now tested in
libcore/luni/src/test/java/libcore/java/net/URLConnectionTest.java,
in testClientConfiguredGzipContentEncoding().

test_getLastModified() was hitting
http://www.php.net/manual/en/function.explode.php, to see if
getHeaderFieldDate was working for Last-Modified. That getter is
better tested in test_getHeaderFieldDateLjava_lang_StringJ(), in the
same file.

Bug:18480776

(cherry picked from commit 939e6a1aceff448445928ad5d815479e84e84383)

Change-Id: Ia01fd59809683317271017364179e1843c149e65
diff --git a/luni/src/test/java/libcore/java/net/URLConnectionTest.java b/luni/src/test/java/libcore/java/net/URLConnectionTest.java
index 3db7c8f..9e94c2e 100644
--- a/luni/src/test/java/libcore/java/net/URLConnectionTest.java
+++ b/luni/src/test/java/libcore/java/net/URLConnectionTest.java
@@ -965,6 +965,7 @@
 
         RecordedRequest request = server.takeRequest();
         assertContains(request.getHeaders(), "Accept-Encoding: gzip");
+        assertEquals("gzip", connection.getContentEncoding());
     }
 
     public void testGzipAndConnectionReuseWithFixedLength() throws Exception {
diff --git a/luni/src/test/java/org/apache/harmony/luni/tests/java/net/URLConnectionTest.java b/luni/src/test/java/org/apache/harmony/luni/tests/java/net/URLConnectionTest.java
index d52b033..5307cf4 100644
--- a/luni/src/test/java/org/apache/harmony/luni/tests/java/net/URLConnectionTest.java
+++ b/luni/src/test/java/org/apache/harmony/luni/tests/java/net/URLConnectionTest.java
@@ -438,39 +438,6 @@
     }
 
     /**
-     * @throws IOException
-     * {@link java.net.URLConnection#getContentEncoding()}
-     */
-    // broken test - Fails in CTS, passes in CoreTestRunner
-    public void test_getContentEncoding() throws IOException {
-        // faulty setup
-        try {
-
-        fileURLCon.getContentEncoding();
-        fail("Exception expected");
-        } catch (Throwable e) {
-            //ok
-        }
-
-        // positive case
-
-        URL url = new URL("http://www.amazon.com/");
-
-        URLConnection con = url.openConnection();
-        con.setRequestProperty("Accept-Encoding", "gzip");
-        con.connect();
-
-        assertEquals(con.getContentEncoding(), "gzip");
-
-
-        uc2.setRequestProperty("Accept-Encoding", "bla");
-        uc2.connect();
-
-        assertNull(uc2.getContentEncoding());
-
-    }
-
-    /**
      * {@link java.net.URLConnection#getContentLength()}
      */
     public void test_getContentLength() throws Exception {
@@ -833,34 +800,6 @@
         }
     }
 
-    /**
-     * @throws IOException
-     * {@link java.net.URLConnection#getLastModified()}
-     */
-    public void test_getLastModified() throws IOException {
-
-        URL url4 = new URL(Support_Configuration.hTTPURLwLastModified);
-        URLConnection uc4 = url4.openConnection();
-
-        uc4.connect();
-
-        if (uc4.getLastModified() == 0) {
-            System.out
-                    .println("WARNING: Server does not support 'Last-Modified', test_getLastModified() not run");
-            return;
-        }
-
-        long millis = uc4.getHeaderFieldDate("Last-Modified", 0);
-
-        assertEquals(
-                "Returned wrong getLastModified value.  Wanted: "
-                        + " got: " + uc4.getLastModified(),
-                millis, uc4.getLastModified());
-
-
-        ((HttpURLConnection) uc).disconnect();
-    }
-
     public void test_getOutputStream_failAfterDisconnect() throws IOException {
         ((HttpURLConnection) uc2).disconnect();
 
diff --git a/support/src/test/java/tests/support/Support_Configuration.java b/support/src/test/java/tests/support/Support_Configuration.java
index 0658d54..8058315 100644
--- a/support/src/test/java/tests/support/Support_Configuration.java
+++ b/support/src/test/java/tests/support/Support_Configuration.java
@@ -86,8 +86,6 @@
     // than one addresses returned for this host name as needed by a test
     // END android-changed
 
-    public static String hTTPURLwLastModified = "http://www.php.net/manual/en/function.explode.php";
-
     public static int SpecialInetTestAddressNumber = 4;
 
     /**