Revert "Add prebuilt bootloader var and add bootloader to img zip"

Revert submission 1402265-cf-x86-bootloader

Reason for revert: Droidcop-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_master&target=adt3-userdebug&lkgb=6791187&lkbb=6791249&fkbb=6791216, bug 166380489
Reverted Changes:
Id67b7bddd:Add prebuilt bootloader var and add bootloader to ...
Id713eaf20:Added bootloader binary to cf x86 based targets

Change-Id: I89e95d4a6a0534c8217785be9b90632fa110bc41
diff --git a/core/Makefile b/core/Makefile
index 19481df..92723d3 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -584,10 +584,6 @@
 # #################################################################
 ifneq ($(strip $(TARGET_NO_BOOTLOADER)),true)
   INSTALLED_BOOTLOADER_MODULE := $(PRODUCT_OUT)/bootloader
-  ifdef BOARD_PREBUILT_BOOTLOADER
-    $(eval $(call copy-one-file,$(BOARD_PREBUILT_BOOTLOADER),$(INSTALLED_BOOTLOADER_MODULE)))
-    $(call dist-for-goals,dist_files,$(INSTALLED_BOOTLOADER_MODULE))
-  endif # BOARD_PREBUILT_BOOTLOADER
   ifeq ($(strip $(TARGET_BOOTLOADER_IS_2ND)),true)
     INSTALLED_2NDBOOTLOADER_TARGET := $(PRODUCT_OUT)/2ndbootloader
   else
@@ -4142,9 +4138,6 @@
 ifdef DEVICE_MANIFEST_FILE
 	$(hide) echo "vintf_include_empty_vendor_sku=true" >> $@
 endif
-ifeq ($(BOARD_BOOTLOADER_IN_UPDATE_PACKAGE),true)
-	$(hide) echo "bootloader_in_update_package=true" >> $@
-endif
 
 .PHONY: misc_info
 misc_info: $(INSTALLED_MISC_INFO_TARGET)
@@ -4324,7 +4317,6 @@
 	    $(INSTALLED_ANDROID_INFO_TXT_TARGET) \
 	    $(INSTALLED_KERNEL_TARGET) \
 	    $(INSTALLED_DTBIMAGE_TARGET) \
-	    $(INSTALLED_BOOTLOADER_MODULE) \
 	    $(INSTALLED_2NDBOOTLOADER_TARGET) \
 	    $(BOARD_PREBUILT_DTBOIMAGE) \
 	    $(BOARD_PREBUILT_RECOVERY_DTBOIMAGE) \
@@ -4591,10 +4583,6 @@
 	$(hide) mkdir -p $(zip_root)/PREBUILT_IMAGES
 	$(hide) cp $(INSTALLED_DTBOIMAGE_TARGET) $(zip_root)/PREBUILT_IMAGES/
 endif # BOARD_PREBUILT_DTBOIMAGE
-ifdef BOARD_PREBUILT_BOOTLOADER
-	$(hide) mkdir -p $(zip_root)/IMAGES
-	$(hide) cp $(INSTALLED_BOOTLOADER_MODULE) $(zip_root)/IMAGES/
-endif
 ifneq ($(strip $(BOARD_CUSTOMIMAGES_PARTITION_LIST)),)
 	$(hide) mkdir -p $(zip_root)/PREBUILT_IMAGES
 	$(hide) $(foreach partition,$(BOARD_CUSTOMIMAGES_PARTITION_LIST), \
diff --git a/core/board_config.mk b/core/board_config.mk
index adef055..b7d0178 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -20,7 +20,6 @@
 # ###############################################################
 
 _board_strip_readonly_list := \
-  BOARD_BOOTLOADER_IN_UPDATE_PACKAGE \
   BOARD_EGL_CFG \
   BOARD_HAVE_BLUETOOTH \
   BOARD_INSTALLER_CMDLINE \
diff --git a/tools/releasetools/img_from_target_files.py b/tools/releasetools/img_from_target_files.py
index 5409194..ab38d0d 100755
--- a/tools/releasetools/img_from_target_files.py
+++ b/tools/releasetools/img_from_target_files.py
@@ -58,7 +58,6 @@
 OPTIONS.additional_entries = []
 OPTIONS.bootable_only = False
 OPTIONS.put_super = None
-OPTIONS.put_bootloader = None
 OPTIONS.dynamic_partition_list = None
 OPTIONS.super_device_list = None
 OPTIONS.retrofit_dap = None
@@ -76,7 +75,6 @@
     info = OPTIONS.info_dict = common.LoadInfoDict(input_zip)
 
   OPTIONS.put_super = info.get('super_image_in_update_package') == 'true'
-  OPTIONS.put_bootloader = info.get('bootloader_in_update_package') == 'true'
   OPTIONS.dynamic_partition_list = info.get('dynamic_partition_list',
                                             '').strip().split()
   OPTIONS.super_device_list = info.get('super_block_devices',
@@ -124,11 +122,9 @@
 
   for image_path in [name for name in namelist if name.startswith('IMAGES/')]:
     image = os.path.basename(image_path)
-    if OPTIONS.bootable_only and image not in('boot.img', 'recovery.img', 'bootloader'):
+    if OPTIONS.bootable_only and image not in ('boot.img', 'recovery.img'):
       continue
-    if not image.endswith('.img') and image != 'bootloader':
-      continue
-    if image == 'bootloader' and not OPTIONS.put_bootloader:
+    if not image.endswith('.img'):
       continue
     # Filter out super_empty and the images that are already in super partition.
     if OPTIONS.put_super: