AP_HAL: remove support for main without argc

This was only used by flymaple. Also add missing copyright notice to
header.

libraries/AP_HAL/AP_HAL_Main.h

@@ -1,9 +1,24 @@
+/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
+/*
+ * Copyright (C) 2016  Intel Corporation. All rights reserved.
+ *
+ * This file is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 #pragma once
 
 #include "HAL.h"
 
-#define CONFIG_MAIN_WITHOUT_ARGC_ARGV 0
-
 #if CONFIG_HAL_BOARD == HAL_BOARD_PX4 || CONFIG_HAL_BOARD == HAL_BOARD_VRBRAIN
 #define AP_MAIN __EXPORT ArduPilot_main
 #endif
@@ -12,27 +27,6 @@
 #define AP_MAIN main
 #endif
 
-#if CONFIG_MAIN_WITHOUT_ARGC_ARGV
-
-#define AP_HAL_MAIN() extern "C" { \
-    int AP_MAIN(void); \
-    int AP_MAIN(void) { \
-        AP_HAL::HAL::FunCallbacks callbacks(setup, loop);       \
-        hal.run(0, NULL, &callbacks); \
-        return 0; \
-    } \
-    }
-
-#define AP_HAL_MAIN_CALLBACKS(CALLBACKS) extern "C" { \
-    int AP_MAIN(void); \
-    int AP_MAIN(void) { \
-        hal.run(0, NULL, CALLBACKS); \
-        return 0; \
-    } \
-    }
-
-#else
-
 #define AP_HAL_MAIN() \
     AP_HAL::HAL::FunCallbacks callbacks(setup, loop); \
     extern "C" {                               \
@@ -50,5 +44,3 @@
         return 0; \
     } \
     }
-
-#endif