delete include/vendor.sh and merge elsewhere

move it all to other files where items are used, and not
used anywhere else. this reduces the size of vendor.sh.

also remove a few redundant variables, or variables that
are not meaningfully used.

a few items have been moved to include/option.sh

Signed-off-by: Leah Rowe <leah@libreboot.org>

script/update/project/release

@@ -14,9 +14,6 @@ _f="coreboot u-boot seabios flashrom grub memtest86plus uefitool"
 _f="${_f} bios_extract biosutilities pico-serprog stm32-vserprog"
 _f="${_f} rpi-pico-serprog"
 
-ifdtool="cbutils/default/ifdtool"
-cbfstool="cbutils/default/cbfstool"
-
 main()
 {
 	vdir="release"

script/update/project/trees

@@ -14,8 +14,7 @@ set -u -e
 export LOCALVERSION="-${projectname}-${version%%-*}"
 
 eval "$(setvars "" arch cfgsdir codedir config config_name crossgcc_ada mode \
-    elfdir listfile project romtype target target_dir targets tree cbfstool _f \
-    target1)"
+    elfdir listfile project romtype target target_dir targets tree _f target1)"
 
 tmpclean="$(mktemp -d -t makeclean.XXXXXXXXXX)"