Remove Brillo-specific LOCAL_MODULE_TAGS

Replaced with PRODUCT_PACKAGES_ENG in brillo_base.mk

Change-Id: I523e1b43b6a9e926a26d452f1dcd4f66d35162d8
diff --git a/Android.mk b/Android.mk
index 734f9a9..29fdede 100644
--- a/Android.mk
+++ b/Android.mk
@@ -144,9 +144,6 @@
 # =========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := libminijail_unittest
-ifdef BRILLO
-  LOCAL_MODULE_TAGS := eng
-endif
 
 LOCAL_CFLAGS := $(minijailCommonCFlags)
 LOCAL_CLANG := true
@@ -168,9 +165,6 @@
 # =========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := syscall_filter_unittest
-ifdef BRILLO
-  LOCAL_MODULE_TAGS := eng
-endif
 
 LOCAL_CFLAGS := $(minijailCommonCFlags)
 LOCAL_CLANG := true
@@ -189,9 +183,6 @@
 # =========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := libminijail_test
-ifdef BRILLO
-  LOCAL_MODULE_TAGS := eng
-endif
 
 LOCAL_CFLAGS := $(minijailCommonCFlags)
 LOCAL_CLANG := true