bundle_firmware: don't copy RO coreboot to RW

coreboot now knows how to create and populate the RW sections, so we
don't need to create them from RO anymore.

BUG=chromium:595715
BRANCH=none
TEST=none

Change-Id: If5a4afe5de1611381e9da84c46593dbd1adddf59
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://chromium-review.googlesource.com/333710
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
diff --git a/host/lib/bundle_firmware.py b/host/lib/bundle_firmware.py
index 2c3fa49..2179e29 100644
--- a/host/lib/bundle_firmware.py
+++ b/host/lib/bundle_firmware.py
@@ -962,16 +962,11 @@
       raise BlobDeferral("Waiting for 'cb_with_fmap' property")
 
     part_sections = blob_name.split('/')[1:]
-    fmap_src = self._FmapNameByPath('ro-boot'.split('-'))
     fmap_dst = self._FmapNameByPath(part_sections)
 
     # Base address and size of the desitnation partition
     base, size = self.fdt.GetFlashPart(*part_sections)
 
-    # Copy CBFS to the required offset
-    self._tools.Run('cbfstool', [cb_copy, 'copy', '-r', fmap_dst,
-                                 '-R', fmap_src])
-
     # Add coreboot payload if so requested. Note that the some images use
     # different payload for the rw sections, which is passed in as the value
     # of the --uboot option in the command line.