Revert "Enable new data stack by default"

This reverts commit cb361f1eab8c79768e27561329a0db71dcecee1c.

Reason for revert: test failure https://android-build.googleplex.com/builds/tests/view?testResultId=TR86027978682175272&invocationId=I88400010039063162

Change-Id: I398f3b270779c433892cddd238763b031a8ed43a
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index a9dddc2..c5d50fb 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2600,7 +2600,7 @@
     <string name="config_bandwidthEstimateSource">bandwidth_estimator</string>
 
     <!-- Whether force to enable telephony new data stack or not -->
-    <bool name="config_force_enable_telephony_new_data_stack">true</bool>
+    <bool name="config_force_enable_telephony_new_data_stack">false</bool>
 
     <!-- Whether WiFi display is supported by this device.
          There are many prerequisites for this feature to work correctly.