{humble} backward-ros: Remove unneeded backport

Remove the patch backporting changes to make backward_rosConfig
relocatable, as these upstream changes are now fetched by this recipe.

Signed-off-by: Amelia Grace <[email protected]>

Author: graceagrace

meta-ros2-humble/recipes-bbappends/backward-ros/backward-ros/0001-Backport-make-backward_rosConfig-cmake-relocatable.patch

@@ -3,7 +3,3 @@
 DEPENDS += "ament-cmake-native"
 
 BBCLASSEXTEND = "native nativesdk"
-
-FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
-
-SRC_URI += "file://0001-Backport-make-backward_rosConfig-cmake-relocatable.patch"