SWDEV-439581 - fix comments for hipEventSynchronize

Change-Id: I81152ff29b9c59015253b736eea3679f4c750530

include/hip/hip_runtime_api.h

@@ -2845,7 +2845,6 @@ hipError_t hipEventDestroy(hipEvent_t event);
  *  If hipEventRecord() has not been called on @p event, this function returns #hipSuccess when no
  *  event is captured.
  *
- *  This function needs to support hipEventBlockingSync parameter.
  *
  *  @param[in] event Event on which to wait.
  *