Remove export of ARMLMD_LICENSE_FILE variable

Variable is defined and exported in the docker node [1] thus there is
no need to export it at CI Scripts level.

[1] https://git.trustedfirmware.org/ci/dockerfiles.git/tree/bionic-amd64-tf-a-build/Dockerfile

Signed-off-by: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: I9d53a60c7e1b6ea10c9ebc0102c2a010d05949a9
diff --git a/utils.sh b/utils.sh
index 5465e56..340d089 100644
--- a/utils.sh
+++ b/utils.sh
@@ -392,7 +392,6 @@
 
 export LD_LIBRARY_PATH
 export LM_LICENSE_FILE
-export ARMLMD_LICENSE_FILE="$LM_LICENSE_FILE"
 export ARM_TOOL_VARIANT=ult
 
 # vim: set tw=80 sw=8 noet: