[SYCL][E2E] Remove use of distutils package

This package is deprecated and removed in python 3.12. PEP 632
recommends replacing distutils.spawn.find_executable with shutils.which,
which should offer the same functionality.

Also remove another python module which appears unused.

Author: frasercrmck

sycl/test-e2e/lit.cfg.py

@@ -5,9 +5,8 @@
 import copy
 import re
 import subprocess
-import tempfile
 import textwrap
-from distutils.spawn import find_executable
+import shutil
 
 import lit.formats
 import lit.util
@@ -558,15 +557,15 @@
     else:
         lit_config.warning("Can't find " + tool.key)
 
-if find_executable("cmc"):
+if shutil.which("cmc") is not None:
     config.available_features.add("cm-compiler")
 
 # Device AOT compilation tools aren't part of the SYCL project,
 # so they need to be pre-installed on the machine
 aot_tools = ["ocloc", "opencl-aot"]
 
 for aot_tool in aot_tools:
-    if find_executable(aot_tool) is not None:
+    if shutil.which(aot_tool) is not None:
         lit_config.note("Found pre-installed AOT device compiler " + aot_tool)
         config.available_features.add(aot_tool)
     else:

sycl/test/lit.cfg.py

@@ -5,7 +5,6 @@
 import re
 import subprocess
 import tempfile
-from distutils.spawn import find_executable
 
 import lit.formats
 import lit.util