[Ada] Remove repeated analysis for pragma Thread_Local_Storage

When analysing pragma Thread_Local_Storage its argument is analysed by
the call to Check_Arg_Is_Library_Level_Local_Name. There is no need to
reanalyse it. Code cleanup; behaviour is not affected.

gcc/ada/

	* sem_prag.adb (Analyze_Pragma): Remove unnecessary call to
	Analyze.
1 file changed