Remove unused phonys

Nothing depends on these.

Test: codesearch android_stubs[^_]
Change-Id: Ic22e3f263c8bb6b23fc443ed8157226073ec474e
diff --git a/build/Android.mk b/build/Android.mk
index 8024cfc..2536765 100644
--- a/build/Android.mk
+++ b/build/Android.mk
@@ -60,9 +60,6 @@
 full_target := $(call intermediates-dir-for,JAVA_LIBRARIES,android_stubs_current,,COMMON)/classes.jar
 full_src_target := $(OUT_DOCS)/api-stubs-docs-stubs.srcjar
 
-.PHONY: android_stubs
-android_stubs: $(full_target) $(full_src_target)
-
 # android.jar is what we put in the SDK package.
 android_jar_intermediates := $(call intermediates-dir-for,PACKAGING,android_jar,,COMMON)
 android_jar_full_target := $(android_jar_intermediates)/android.jar
@@ -125,15 +122,3 @@
 # ============ SDK AIDL ============
 $(eval $(call copy-one-file,$(FRAMEWORK_AIDL),$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/framework.aidl))
 ALL_SDK_FILES += $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/framework.aidl
-
-# ============ System SDK ============
-full_target := $(call intermediates-dir-for,JAVA_LIBRARIES,android_system_stubs_current,,COMMON)/classes.jar
-
-.PHONY: android_system_stubs
-android_system_stubs: $(full_target)
-
-# ============ Test SDK ============
-full_target := $(call intermediates-dir-for,JAVA_LIBRARIES,android_test_stubs_current,,COMMON)/classes.jar
-
-.PHONY: android_test_stubs
-android_test_stubs: $(full_target)