Revert "Sign APKs using SHA-256 instead of SHA-1 when possible."

This reverts commit 74df828cb574a6f30be9b9dcf286773ca1835f72. This commit is breaking a build, again...

Change-Id: I2df561d68302ba4c83e90a64a7bf203645033a3b
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 225082b..601a79c 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -213,7 +213,7 @@
 endif
 $(built_module): PRIVATE_EMBEDDED_JNI_LIBS := $(embedded_prebuilt_jni_libs)
 
-$(built_module) : $(my_prebuilt_src_file) | $(ACP) $(ZIPALIGN) $(SIGNAPK_JAR) $(AAPT)
+$(built_module) : $(my_prebuilt_src_file) | $(ACP) $(ZIPALIGN) $(SIGNAPK_JAR)
 	$(transform-prebuilt-to-target)
 	$(uncompress-shared-libs)
 ifneq ($(LOCAL_CERTIFICATE),PRESIGNED)
@@ -252,7 +252,7 @@
 
 $(built_apk_splits) : PRIVATE_PRIVATE_KEY := $(LOCAL_CERTIFICATE).pk8
 $(built_apk_splits) : PRIVATE_CERTIFICATE := $(LOCAL_CERTIFICATE).x509.pem
-$(built_apk_splits) : $(built_module_path)/%.apk : $(my_src_dir)/%.apk | $(ACP) $(AAPT)
+$(built_apk_splits) : $(built_module_path)/%.apk : $(my_src_dir)/%.apk | $(ACP)
 	$(copy-file-to-new-target)
 	$(sign-package)