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/build/fw/coreboot

@@ -22,7 +22,7 @@ kmapdir="config/grub/keymap"
 # target.cfg files have to specifically enable [a] payload(s)
 pv="payload_grub payload_grub_withseabios payload_seabios payload_memtest"
 pv="${pv} payload_seabios_withgrub payload_uboot memtest_bin"
-v="romdir cbdir cbfstool cbrom initmode displaymode cbcfg targetdir tree arch"
+v="romdir cbrom initmode displaymode cbcfg targetdir tree arch"
 v="${v} grub_timeout ubdir vendorfiles board grub_scan_disk uboot_config"
 eval "$(setvars "n" ${pv})"
 eval "$(setvars "" ${v})"

script/build/fw/serprog

@@ -7,8 +7,7 @@ set -u -e
 
 . "include/err.sh"
 
-eval "$(setvars "" platform pico_sdk_dir pico_src_dir stm32_src_dir \
-    boards_dir)"
+eval "$(setvars "" platform pico_sdk_dir pico_src_dir stm32_src_dir boards_dir)"
 
 pico_src_dir=src/pico-serprog
 pico_sdk_dir=src/pico-sdk