platform/x86: intel: punit_ipc: Remove unused function

intel_punit_ipc_simple_command() was added in 2015 by
commit fdca4f16f57d ("platform:x86: add Intel P-Unit mailbox IPC driver")
but never used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Ilpo Järvinen <[e-mail]>
Signed-off-by: Ilpo Järvinen <[e-mail]>

arch/x86/include/asm/intel_punit_ipc.h

···
 
 #if IS_ENABLED(CONFIG_INTEL_PUNIT_IPC)
 
-int intel_punit_ipc_simple_command(int cmd, int para1, int para2);
 int intel_punit_ipc_command(u32 cmd, u32 para1, u32 para2, u32 *in, u32 *out);
 
 #else
-
-static inline int intel_punit_ipc_simple_command(int cmd,
-						  int para1, int para2)
-{
-	return -ENODEV;
-}
 
 static inline int intel_punit_ipc_command(u32 cmd, u32 para1, u32 para2,
 					  u32 *in, u32 *out)

drivers/platform/x86/intel/punit_ipc.c

···
 }
 
 /**
- * intel_punit_ipc_simple_command() - Simple IPC command
- * @cmd:	IPC command code.
- * @para1:	First 8bit parameter, set 0 if not used.
- * @para2:	Second 8bit parameter, set 0 if not used.
- *
- * Send a IPC command to P-Unit when there is no data transaction
- *
- * Return:	IPC error code or 0 on success.
- */
-int intel_punit_ipc_simple_command(int cmd, int para1, int para2)
-{
-	IPC_DEV *ipcdev = punit_ipcdev;
-	IPC_TYPE type;
-	u32 val;
-	int ret;
-
-	mutex_lock(&ipcdev->lock);
-
-	reinit_completion(&ipcdev->cmd_complete);
-	type = (cmd & IPC_PUNIT_CMD_TYPE_MASK) >> IPC_TYPE_OFFSET;
-
-	val = cmd & ~IPC_PUNIT_CMD_TYPE_MASK;
-	val |= CMD_RUN | para2 << CMD_PARA2_SHIFT | para1 << CMD_PARA1_SHIFT;
-	ipc_write_cmd(ipcdev, type, val);
-	ret = intel_punit_ipc_check_status(ipcdev, type);
-
-	mutex_unlock(&ipcdev->lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(intel_punit_ipc_simple_command);
-
-/**
  * intel_punit_ipc_command() - IPC command with data and pointers
  * @cmd:	IPC command code.
  * @para1:	First 8bit parameter, set 0 if not used.