arm: remove config_manager_arch.c

config_manager_scan_hardcoded() is never invoked
and there's nothing else in config_manager_arch.c

Change-Id: Iddd0648efa15ffe4a1621b74dbdd1db16039bfe8
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5206
Reviewed-by: Fredrik Holmqvist <[email protected]>

src/add-ons/kernel/bus_managers/config_manager/arch/arm/Jamfile

@@ -4,7 +4,5 @@ SubDirHdrs [ FDirName $(SUBDIR) $(DOTDOT) $(DOTDOT) ] ;
 
 UsePrivateHeaders kernel [ FDirName kernel arch $(TARGET_ARCH) ] ;
 
-KernelStaticLibrary config_manager_arch : 
+KernelStaticLibrary config_manager_arch :
-	config_manager_arch.c
 	;
-

src/add-ons/kernel/bus_managers/config_manager/arch/arm/config_manager_arch.c

@@ -1,18 +0,0 @@
-/*
- * Copyright 2009 Haiku, Inc.
- * Distributed under the terms of the MIT License.
- *
- * arch-specific config manager
- *
- * Authors (in chronological order):
- *              François Revol ([email protected])
- */
-
-#include <OS.h>
-#include <config_manager.h>
-
-int config_manager_scan_hardcoded(struct device_info **info, int32 *count)
-{
-	return B_OK;
-}
-