Minor cleanups backported from Linux 2.6:

* Remove a needless include.
* Remove a legacy comment in piix4_access.
* Minor optimization in piix4_access.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5215 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -4,6 +4,7 @@ lm_sensors CHANGES file
 SVN-HEAD
   Library: Don't choke on unrecognized devices, part 2
   Module i2c-i801: Drop broken I2C block read support
+  Module i2c-piix4: Minor cleanups (2.6 backport)
   Program sensors-detect: New device ID for the SMSC SCH5317
                           Add SMSC SCH5127 detection
                           Add National Semiconductor LM64 detection

kernel/busses/i2c-piix4.c

@@ -38,7 +38,6 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
-#include <linux/apm_bios.h>
 #include <asm/io.h>
 #include "version.h"
 #include "sensors_compat.h"
@@ -379,12 +378,7 @@ s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 
 
 	switch (size) {
-	case PIIX4_BYTE:	/* Where is the result put? I assume here it is in
-				   SMBHSTDAT0 but it might just as well be in the
-				   SMBHSTCMD. No clue in the docs */
-
-		data->byte = inb_p(SMBHSTDAT0);
-		break;
+	case PIIX4_BYTE:
 	case PIIX4_BYTE_DATA:
 		data->byte = inb_p(SMBHSTDAT0);
 		break;