Make bionic's dependency on the tzdata explicit.

Also stop building the obsolete three files, now bionic and libcore
both use the new single file.

Bug: 7012465
Change-Id: I1b9b49af7382c57b6cb8820c2275e6d4044b2bb6
diff --git a/libc/Android.mk b/libc/Android.mk
index cd44f23..e494770 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -878,6 +878,7 @@
 
 LOCAL_MODULE:= libc
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_REQUIRED_MODULES := tzdata
 
 # WARNING: The only library libc.so should depend on is libdl.so!  If you add other libraries,
 # make sure to add -Wl,--exclude-libs=libgcc.a to the LOCAL_LDFLAGS for those libraries.  This
diff --git a/libc/zoneinfo/Android.mk b/libc/zoneinfo/Android.mk
index e3bc8ea..fe5099d 100644
--- a/libc/zoneinfo/Android.mk
+++ b/libc/zoneinfo/Android.mk
@@ -1,36 +1,5 @@
 LOCAL_PATH:= $(call my-dir)
 
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo.dat
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_SRC_FILES := $(LOCAL_MODULE)
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_PATH := $(TARGET_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo.idx
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_SRC_FILES := $(LOCAL_MODULE)
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_PATH := $(TARGET_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo.version
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_SRC_FILES := $(LOCAL_MODULE)
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_PATH := $(TARGET_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
 include $(CLEAR_VARS)
 LOCAL_MODULE := tzdata
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
@@ -43,43 +12,6 @@
 # The host build doesn't use bionic, but it does use bionic's zoneinfo data
 ifeq ($(WITH_HOST_DALVIK),true)
 
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo-host.dat
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_IS_HOST_MODULE := true
-LOCAL_SRC_FILES := zoneinfo.dat
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_STEM := $(LOCAL_SRC_FILES)
-LOCAL_MODULE_PATH := $(HOST_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo-host.idx
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_IS_HOST_MODULE := true
-LOCAL_SRC_FILES := zoneinfo.idx
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_STEM := $(LOCAL_SRC_FILES)
-LOCAL_MODULE_PATH := $(HOST_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := zoneinfo-host.version
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_IS_HOST_MODULE := true
-LOCAL_SRC_FILES := zoneinfo.version
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_STEM := $(LOCAL_SRC_FILES)
-LOCAL_MODULE_PATH := $(HOST_OUT)/usr/share/zoneinfo
-include $(BUILD_PREBUILT)
-
-############################################
 include $(CLEAR_VARS)
 LOCAL_MODULE := tzdata-host
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk