Revert "Updating implementation of OMPT as specified in OpenMP 5.0 Preview 2 (TR6)"

This reverts commit r317339 which discarded some recent commits.

llvm-svn: 317346
diff --git a/openmp/runtime/src/ompt-internal.h b/openmp/runtime/src/ompt-internal.h
index e529572..6139e00 100644
--- a/openmp/runtime/src/ompt-internal.h
+++ b/openmp/runtime/src/ompt-internal.h
@@ -31,8 +31,6 @@
 #undef ompt_event_macro
 } ompt_callbacks_active_t;
 
-typedef struct kmp_taskdata kmp_taskdata_t;
-
 #define TASK_TYPE_DETAILS_FORMAT(info)                                         \
   ((info->td_flags.task_serial || info->td_flags.tasking_ser)                  \
        ? ompt_task_undeferred                                                  \
@@ -44,7 +42,7 @@
 typedef struct {
   ompt_frame_t frame;
   ompt_data_t task_data;
-  kmp_taskdata_t *scheduling_parent;
+  struct kmp_taskdata *scheduling_parent;
 #if OMP_40_ENABLED
   int ndeps;
   ompt_task_dependence_t *deps;