diff --git a/core/Makefile b/core/Makefile
index 8345ddc..07d1c94 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1306,10 +1306,6 @@
   $(HOST_OUT_JAVA_LIBRARIES)/BootSignature.jar \
   $(HOST_OUT_EXECUTABLES)/mkuserimg.sh \
   $(HOST_OUT_EXECUTABLES)/make_ext4fs \
-  $(HOST_OUT_EXECUTABLES)/mksquashfsimage.sh \
-  $(HOST_OUT_EXECUTABLES)/mksquashfs \
-  $(HOST_OUT_EXECUTABLES)/mkf2fsuserimg.sh \
-  $(HOST_OUT_EXECUTABLES)/make_f2fs \
   $(HOST_OUT_EXECUTABLES)/simg2img \
   $(HOST_OUT_EXECUTABLES)/e2fsck \
   $(HOST_OUT_EXECUTABLES)/build_verity_tree \
@@ -1351,7 +1347,7 @@
 	$(hide) rm -rf $@ $(zip_root)/releasetools/*.pyc
 	$(hide) (cd $(zip_root) && zip -qry $(abspath $@) *)
 	$(hide) zip -qry $(abspath $@) build/target/product/security/
-	$(hide) find device vendor -name \*.pk8 -o -name verifiedboot\* -o -name \*.x509.pem -o -name oem.prop | xargs zip -qry $(abspath $@)>/dev/null || true
+	$(hide) find device vendor -name \*.pk8 -o -name \*.x509.pem -o -name oem.prop | xargs zip -qry $(abspath $@)>/dev/null || true
 
 .PHONY: otatools-package
 otatools-package: $(BUILT_OTATOOLS_PACKAGE)
diff --git a/target/product/core.mk b/target/product/core.mk
index d453303..abb4c05 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -33,7 +33,6 @@
     DownloadProviderUi \
     Email \
     ExactCalculator \
-    Exchange2 \
     ExternalStorageProvider \
     FusedLocation \
     InputDevices \