oneapi build system: fix openmp_libs (spack#1645)

Author: teabagk7

repos/spack_repo/builtin/build_systems/oneapi.py

@@ -226,10 +226,9 @@ def openmp_libs(self):
             )
 
         # query the compiler for the library path
-        with self.compiler.compiler_environment():
-            omp_lib_path = Executable(self.compiler.cc)(
-                "--print-file-name", f"{libname}.{shared_library_suffix(self.spec)}", output=str
-            ).strip()
+        omp_lib_path = Executable(self.compiler.cc)(
+            "--print-file-name", f"{libname}.{shared_library_suffix(self.spec)}", output=str
+        ).strip()
 
         # Newer versions of clang do not give the full path to libomp. If that's
         # the case, look in a path relative to the compiler where libomp is