[OpenMP] Fix accidental addition of use omp_lib_kinds

Fortran header accidentally had use omp_lib_kinds added inside a
subroutine and function. This patch removes the lines.

GitOrigin-RevId: d12ae7db9973d1aeb21849fadba1c612c0fd0590
diff --git a/runtime/src/include/omp_lib.h.var b/runtime/src/include/omp_lib.h.var
index 0f6c715..7dcd21a 100644
--- a/runtime/src/include/omp_lib.h.var
+++ b/runtime/src/include/omp_lib.h.var
@@ -594,13 +594,11 @@
 
         subroutine omp_set_teams_thread_limit(thread_limit) bind(c)
           import
-          use omp_lib_kinds
           integer (kind=omp_integer_kind), value :: thread_limit
         end subroutine omp_set_teams_thread_limit
 
         function omp_get_teams_thread_limit() bind(c)
           import
-          use omp_lib_kinds
           integer (kind=omp_integer_kind) omp_get_teams_thread_limit
         end function omp_get_teams_thread_limit