[Ada] Remove excessive guards against inserting empty lists of actions

["Marc Poulhiès" <poulhies@adacore.com>]

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Call to Insert_Actions with empty list does nothing, so there is no need to
guard against such calls. Code cleanup; behavior is unaffected.

Tested on x86_64-pc-linux-gnu, committed on trunk

gcc/ada/

	* freeze.adb (Freeze_Itype): Remove excessive guard.
	* sem_ch5.adb (Analyze_Loop_Parameter_Specification): Likewise.

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diff --git a/gcc/ada/freeze.adb b/gcc/ada/freeze.adb
--- a/gcc/ada/freeze.adb
+++ b/gcc/ada/freeze.adb
@@ -9653,9 +9653,7 @@ package body Freeze is
       Set_Has_Delayed_Freeze (T);
       L := Freeze_Entity (T, N);
 
-      if Is_Non_Empty_List (L) then
-         Insert_Actions (N, L);
-      end if;
+      Insert_Actions (N, L);
    end Freeze_Itype;
 
    --------------------------


diff --git a/gcc/ada/sem_ch5.adb b/gcc/ada/sem_ch5.adb
--- a/gcc/ada/sem_ch5.adb
+++ b/gcc/ada/sem_ch5.adb
@@ -3365,9 +3365,7 @@ package body Sem_Ch5 is
          declare
             Flist : constant List_Id := Freeze_Entity (Id, N);
          begin
-            if Is_Non_Empty_List (Flist) then
-               Insert_Actions (N, Flist);
-            end if;
+            Insert_Actions (N, Flist);
          end;
       end if;