Remove SDK Tools from platform builds.

(cherry picked from commit edf30221b4890673dc714a1efef3b5faf4ae1522)

Change-Id: Ia74c2ece1528adca10a4eec24e73b4ce361af1a9
diff --git a/core/Makefile b/core/Makefile
index d223122..ba373a5 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1546,27 +1546,11 @@
 
 atree_dir := development/build
 
-# sdk/build/tools.atree contains the generic rules, while
-#
-# sdk/build/tools.$(TARGET_ARCH).atree contains target-specific rules
-# the latter is optional.
-#
-sdk_tools_atree_files := sdk/build/tools.atree
-ifneq (,$(strip $(wildcard sdk/build/tools.$(TARGET_ARCH).atree)))
-  sdk_tools_atree_files += sdk/build/tools.$(TARGET_ARCH).atree
-endif
-ifneq (,$(strip $(wildcard sdk/build/tools.$(HOST_OS).atree)))
-  sdk_tools_atree_files += sdk/build/tools.$(HOST_OS).atree
-endif
-ifneq (,$(strip $(wildcard sdk/build/tools.$(HOST_OS)-$(HOST_ARCH).atree)))
-  sdk_tools_atree_files += sdk/build/tools.$(HOST_OS)-$(HOST_ARCH).atree
-endif
 
 sdk_atree_files := \
 	$(atree_dir)/sdk.exclude.atree \
 	$(atree_dir)/sdk.atree \
-	$(atree_dir)/sdk-$(HOST_OS)-$(HOST_ARCH).atree \
-	$(sdk_tools_atree_files)
+	$(atree_dir)/sdk-$(HOST_OS)-$(HOST_ARCH).atree
 
 # development/build/sdk-android-<abi>.atree is used to differentiate
 # between architecture models (e.g. ARMv5TE versus ARMv7) when copying
@@ -1588,7 +1572,6 @@
 	$(INSTALLED_BUILD_PROP_TARGET) \
 	$(ATREE_FILES) \
 	$(atree_dir)/sdk.atree \
-	$(sdk_tools_atree_files) \
 	$(HOST_OUT_EXECUTABLES)/atree \
 	$(HOST_OUT_EXECUTABLES)/line_endings
 
@@ -1631,7 +1614,6 @@
 			-o $(PRIVATE_DIR) && \
 		cp -f $(target_notice_file_txt) \
 				$(PRIVATE_DIR)/system-images/android-$(PLATFORM_VERSION)/$(TARGET_CPU_ABI)/NOTICE.txt && \
-		cp -f $(tools_notice_file_txt) $(PRIVATE_DIR)/tools/NOTICE.txt && \
 		cp -f $(tools_notice_file_txt) $(PRIVATE_DIR)/platform-tools/NOTICE.txt && \
 		HOST_OUT_EXECUTABLES=$(HOST_OUT_EXECUTABLES) HOST_OS=$(HOST_OS) \
 			development/build/tools/sdk_clean.sh $(PRIVATE_DIR) && \