Revert "Create telephony apex."

This reverts commit 8c7ca1bc0523896b4cf6243b616163fe8fb95596.

Reason for revert: b/148821604

Merged-in: I12defd7fe6aba01a381f8ad014475941e58d21d3
Change-Id: I12defd7fe6aba01a381f8ad014475941e58d21d3
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 20fd189..d9ef0c2 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -59,7 +59,6 @@
     com.android.resolv \
     com.android.neuralnetworks \
     com.android.sdkext \
-    com.android.telephony \
     com.android.tethering \
     com.android.tzdata \
     ContactsProvider \