Revert "Set diagnostics log-data-type to CONNDIAG"

This reverts commit 5714031dcceb03b7b3c9bd35cdb384b7a4933b9f.

Reason for revert: breaks MCTS as tests are run with older tradefed that does not have the option: b/378710131

This can be rolled forward after cherry-picking the tradefed change to older branches.

Change-Id: Ib9b4fe3b1c5393cd6e802eee4899457497d79ca7
diff --git a/tests/cts/net/AndroidTestTemplate.xml b/tests/cts/net/AndroidTestTemplate.xml
index 7590a2b..a65316f 100644
--- a/tests/cts/net/AndroidTestTemplate.xml
+++ b/tests/cts/net/AndroidTestTemplate.xml
@@ -60,8 +60,7 @@
     </test>
     <metrics_collector class="com.android.tradefed.device.metric.FilePullerLogCollector">
         <!-- Pattern matching the fileKey used by ConnectivityDiagnosticsCollector when calling addFileMetric -->
-        <option name="pull-pattern-keys" value="com.android.testutils.ConnectivityDiagnosticsCollector.*" />
-        <option name="log-data-type" value="CONNDIAG" />
+        <option name="pull-pattern-keys" value="com.android.testutils.ConnectivityDiagnosticsCollector.*"/>
         <option name="collect-on-run-ended-only" value="true" />
     </metrics_collector>
     <!-- When this test is run in a Mainline context (e.g. with `mts-tradefed`), only enable it if