feat: drop reference to clang in hafnium/prebuilts

Signed-off-by: J-Alves <joao.alves@arm.com>
Change-Id: Id7be75817d5d3d86ff1e402ddc691e6bc52967f2
diff --git a/script/build_package.sh b/script/build_package.sh
index 87407d6..192bbcf 100755
--- a/script/build_package.sh
+++ b/script/build_package.sh
@@ -872,8 +872,6 @@
 
 	# Build SPM. Since build output is being directed to the build log, have
 	# descriptor 3 point to the current terminal for build wrappers to vent.
-	export PATH=$PWD/prebuilts/linux-x64/clang/bin:$PWD/prebuilts/linux-x64/dtc:$PATH
-
 	make $make_j_opts $(cat "$config_file") 3>&1 &>>"$build_log" \
 		|| fail_build
 	)