* Remove useless occurrence of the Usage function

src/python/ocarina-utils.adb

@@ -96,64 +96,6 @@ package body Ocarina.Utils is
                     & Ocarina.FE_AADL.Parser.Add_Pre_Prop_Sets'Img);
    end Print_Status;
 
-   -----------
-   -- Usage --
-   -----------
-
-   procedure Usage is
-      Exec_Suffix : String_Access := Get_Executable_Suffix;
-   begin
-      Set_Standard_Error;
-      Write_Line ("Usage: ");
-      Write_Line ("      "
-                    & Base_Name (Command_Name, Exec_Suffix.all)
-                    & " [options] files");
-      Write_Line ("      OR");
-      Write_Line ("      "
-                    & Base_Name (Command_Name, Exec_Suffix.all)
-                    & " -help");
-      Write_Line ("  files are a non null sequence of AADL files");
-
-      Write_Eol;
-      Write_Line ("  General purpose options:");
-      Write_Line ("   -V  Output Ocarina version, then exit");
-      Write_Line ("   -s  Output Ocarina search directory, then exit");
-
-      Write_Eol;
-      Write_Line ("  Scenario file options:");
-      Write_Line ("   -b  Generate and build code from the AADL model");
-      Write_Line ("   -z  Clean code generated from the AADL model");
-      Write_Line ("   -ec Execute the generated application code and");
-      Write_Line ("       retrieve coverage information");
-      Write_Line ("   -er Execute the generated application code and");
-      Write_Line ("       verify that there is no regression");
-      Write_Line ("   -p  Only parse and instantiate the application model");
-      Write_Line ("   -c  Only perform schedulability analysis");
-
-      Write_Eol;
-      Write_Line ("  Advanced user options:");
-      Write_Line ("   -d  Debug mode for developpers");
-      Write_Line ("   -q  Quiet mode (default)");
-      Write_Line ("   -t  [script] Run Ocarina in terminal interactive mode.");
-      Write_Line ("       If a script is given, interpret it then exit.");
-      Write_Line ("   -v  Verbose mode for users");
-      Write_Line ("   -x  Parse AADL file as an AADL scenario file");
-
-      Ocarina.FE_AADL.Usage;
-      Ocarina.FE_REAL.Usage;
-      Ocarina.Backends.Usage;
-
-      Write_Line ("   -disable-annexes={annexes}"
-                    & "  Desactive one or all annexes");
-      Write_Line ("       Annexes :");
-      Write_Line ("        all");
-      Write_Line ("        behavior_specification");
-      Write_Line ("        real");
-      Write_Eol;
-
-      Free (Exec_Suffix);
-   end Usage;
-
    --------------------
    -- Load_AADL_File --
    --------------------

src/python/ocarina-utils.ads

@@ -37,9 +37,6 @@ with Ocarina.ME_AADL.AADL_Tree.Nodes;
 
 package Ocarina.Utils is
 
-   procedure Usage;
-   --  Display a message describing the usage of Ocarina
-
    procedure Print_Status;
    --  Display status information on Ocarina