remove support for non-ANSI compilation

*** 19,37 ****
   *
   * CDDL HEADER END
   */
  
  /*
   * Copyright (c) 1999-2000 by Sun Microsystems, Inc.
   * All rights reserved.
   */
  
  #ifndef _SYS_HOTPLUG_HPCSVC_H
  #define _SYS_HOTPLUG_HPCSVC_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/hotplug/hpctrl.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
--- 19,37 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright (c) 1999-2000 by Sun Microsystems, Inc.
   * All rights reserved.
   */
  
  #ifndef _SYS_HOTPLUG_HPCSVC_H
  #define _SYS_HOTPLUG_HPCSVC_H
  
  #include <sys/hotplug/hpctrl.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
*** 38,48 ****
  
  /* flags for event handling */
  #define HPC_EVENT_NORMAL        0       /* normal, queued event handling */
  #define HPC_EVENT_SYNCHRONOUS   1       /* unqueued sync. event handling */
  
- #ifdef  __STDC__
  extern int hpc_nexus_register_bus(dev_info_t *dip,
          int (* callback)(dev_info_t *dip, hpc_slot_t handle,
                  hpc_slot_info_t *slot_info, int slot_state),
          uint_t flags);
  extern int hpc_nexus_unregister_bus(dev_info_t *dip);
--- 38,47 ----
*** 52,71 ****
  extern int hpc_nexus_remove(hpc_slot_t handle, void *data, uint_t flags);
  extern int hpc_nexus_control(hpc_slot_t handle, int request, caddr_t arg);
  extern int hpc_install_event_handler(hpc_slot_t handle, uint_t event_mask,
          int (*event_handler)(caddr_t, uint_t), caddr_t arg);
  extern int hpc_remove_event_handler(hpc_slot_t handle);
- #else
- extern int hpc_nexus_register_bus();
- extern int hpc_nexus_unregister_bus();
- extern int hpc_nexus_connect();
- extern int hpc_nexus_disconnect();
- extern int hpc_nexus_insert();
- extern int hpc_nexus_remove();
- extern int hpc_nexus_control();
- extern int hpc_install_event_handler();
- #endif
  
  #ifdef  __cplusplus
  }
  #endif
  
--- 51,60 ----