Remove symlinks to common

Windows doesn't handle symlinks properly, so we can't
use these for linking to common.

Instead, these will be copied into the SDK by sdk.atree.

For development purposes, framework engineers will need
to create this symlink manually as needed.

Change-Id: I67283d40e08e43697cd0c81bb3e3bbe783b1c051
diff --git a/connectivity/BasicSyncAdapter/BasicSyncAdapter/src/main/java/com/example/android/common b/connectivity/BasicSyncAdapter/BasicSyncAdapter/src/main/java/com/example/android/common
deleted file mode 120000
index f98e04d..0000000
--- a/connectivity/BasicSyncAdapter/BasicSyncAdapter/src/main/java/com/example/android/common
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../../common
\ No newline at end of file