Revert "updater_sample: add proguard.flags"

This reverts commit 8c3af4aa8c35b9fdeb5c2b350098c20202fd3830.

Reason for revert: Broke Master

Change-Id: I37bceeea630fb7db39efa25d03ababe3d84cdfbf
diff --git a/updater_sample/Android.mk b/updater_sample/Android.mk
index a5deee1..7662111 100644
--- a/updater_sample/Android.mk
+++ b/updater_sample/Android.mk
@@ -20,8 +20,9 @@
 LOCAL_PACKAGE_NAME := SystemUpdaterSample
 LOCAL_MODULE_TAGS := samples
 LOCAL_SDK_VERSION := system_current
-LOCAL_PRIVILEGED_MODULE := true
-LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+# TODO: enable proguard and use proguard.flags file
+LOCAL_PROGUARD_ENABLED := disabled
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)