[nrf fromtree] scripts: ci: check_compliance: no need for lxml anymore

Remove an old workaround requiring lxml to be present as junitparser was
not working with xml.etree.ElementTree until version 3.0.0.

Signed-off-by: Benjamin Cabé <[email protected]>
(cherry picked from commit db47c89)

Author: kartben

scripts/ci/check_compliance.py

@@ -2288,14 +2288,6 @@ def _main(args):
 def main(argv=None):
     args = parse_args(argv)
 
-    try:
-        # pylint: disable=unused-import
-        from lxml import etree
-    except ImportError:
-        print("\nERROR: Python module lxml not installed, unable to proceed")
-        print("See https://github.com/weiwei/junitparser/issues/99")
-        return 1
-
     try:
         n_fails = _main(args)
     except BaseException:

scripts/requirements-build-test.txt

@@ -18,4 +18,4 @@ pytest
 mypy
 
 # used for JUnit XML parsing in CTest harness
-junitparser
+junitparser>=3.0.0