Remove .(ll)ndk suffix from (ll)ndk_library

Soong handles these automatically now.

Bug: 33241851
Test: Android-aosp_arm.mk is the same before/after
Test: build.ninja is the same before/after
Test: build-aosp_arm.ninja is the same before/after
Change-Id: Ia039812817495c00e450eec7292447d5e8f93adb
diff --git a/libsync/Android.bp b/libsync/Android.bp
index b293da4..e7dcf36 100644
--- a/libsync/Android.bp
+++ b/libsync/Android.bp
@@ -7,7 +7,7 @@
 }
 
 ndk_library {
-    name: "libsync.ndk",
+    name: "libsync",
     symbol_file: "libsync.map.txt",
     first_version: "26",
 }