Revert "Running jarjar on Java resources."

This reverts commit 140274707e31c9585aa28b0de2f1418c64ecd272.

Breaks the build on uiautomator_compat.

Change-Id: I6d14f39e3432bf5e691027bbb8e7260e4bec8e8d
diff --git a/core/java.mk b/core/java.mk
index e0864ae..a2bd00b 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -474,7 +474,7 @@
     -verbose \
     $(legacy_proguard_flags)
 # not supported with jack
-ifeq ($(LOCAL_USE_JACK),true)
+ifeq ($(strip $(LOCAL_USE_JACK)),true)
     $(error $(LOCAL_MODULE): Build with jack of instrumentation when obfuscating is not yet supported)
 endif
 
@@ -565,7 +565,7 @@
 
 endif  # full_classes_jar is defined
 
-ifeq ($(LOCAL_USE_JACK),true)
+ifeq ($(strip $(LOCAL_USE_JACK)),true)
 $(LOCAL_INTERMEDIATE_TARGETS): \
 	PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack