Remove unuse `BOOT_TOOLS` variable

The `BOOT_TOOLS` variable isn't used, but defined, inside few
recipes. We are removing it from:

- u-boot-fslc
- imx-atf

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
(cherry picked from commit 0d87d90f79c381dfc1a92548bd19600a23376a98)

1 files changed, 0 insertions, 6 deletions

diff --git a/recipes-bsp/u-boot/u-boot-fslc_2022.07.bb b/recipes-bsp/u-boot/u-boot-fslc_2022.07.bb
index de6d22d0..1953d788 100644
--- a/recipes-bsp/u-boot/u-boot-fslc_2022.07.bb
+++ b/recipes-bsp/u-boot/u-boot-fslc_2022.07.bb
@@ -10,12 +10,6 @@ inherit ${@oe.utils.ifelse(d.getVar('UBOOT_PROVIDES_BOOT_CONTAINER') == '1', 'im
 
 DEPENDS += "bc-native dtc-native python3-setuptools-native"
 
-# Location known to imx-boot component, where U-Boot artifacts
-# should be additionally deployed.
-# See below note above do_deploy:append:mx8m-nxp-bsp for the purpose of
-# this delopyment location
-BOOT_TOOLS = "imx-boot-tools"
-
 PROVIDES += "u-boot"
 
 B = "${WORKDIR}/build"