sysfs: small header file cleanup for SYSFS=n

Convert sysfs_remove_bin_file() to have a return type of 'void' for
!CONFIG_SYSFS configurations.  Also removes unnecessary colons from empty
void functions.

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/sysfs.h

@@ -131,7 +131,6 @@ static inline int sysfs_create_dir(struct kobject *kobj)
 
 static inline void sysfs_remove_dir(struct kobject *kobj)
 {
-	;
 }
 
 static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name)
@@ -160,7 +159,6 @@ static inline int sysfs_chmod_file(struct kobject *kobj,
 static inline void sysfs_remove_file(struct kobject *kobj,
 				     const struct attribute *attr)
 {
-	;
 }
 
 static inline int sysfs_create_bin_file(struct kobject *kobj,
@@ -169,10 +167,9 @@ static inline int sysfs_create_bin_file(struct kobject *kobj,
 	return 0;
 }
 
-static inline int sysfs_remove_bin_file(struct kobject *kobj,
-					struct bin_attribute *attr)
+static inline void sysfs_remove_bin_file(struct kobject *kobj,
+					 struct bin_attribute *attr)
 {
-	return 0;
 }
 
 static inline int sysfs_create_link(struct kobject *kobj,
@@ -183,7 +180,6 @@ static inline int sysfs_create_link(struct kobject *kobj,
 
 static inline void sysfs_remove_link(struct kobject *kobj, const char *name)
 {
-	;
 }
 
 static inline int sysfs_create_group(struct kobject *kobj,
@@ -195,7 +191,6 @@ static inline int sysfs_create_group(struct kobject *kobj,
 static inline void sysfs_remove_group(struct kobject *kobj,
 				      const struct attribute_group *grp)
 {
-	;
 }
 
 static inline int sysfs_add_file_to_group(struct kobject *kobj,