ufs: move truncate code into inode.c

It is closely tied to block pointers handling there, can benefit
from existing helpers, etc. - no point keeping them apart.

Trimmed the trailing whitespaces in inode.c at the same time.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/ufs/Makefile

@@ -5,5 +5,5 @@
 obj-$(CONFIG_UFS_FS) += ufs.o
 
 ufs-objs := balloc.o cylinder.o dir.o file.o ialloc.o inode.o \
-	    namei.o super.o symlink.o truncate.o util.o
+	    namei.o super.o symlink.o util.o
 ccflags-$(CONFIG_UFS_DEBUG)    += -DDEBUG

fs/ufs/ufs.h

@@ -122,7 +122,7 @@ extern struct inode *ufs_iget(struct super_block *, unsigned long);
 extern int ufs_write_inode (struct inode *, struct writeback_control *);
 extern int ufs_sync_inode (struct inode *);
 extern void ufs_evict_inode (struct inode *);
-extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
+extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
 
 /* namei.c */
 extern const struct file_operations ufs_dir_operations;
@@ -140,10 +140,6 @@ void ufs_mark_sb_dirty(struct super_block *sb);
 extern const struct inode_operations ufs_fast_symlink_inode_operations;
 extern const struct inode_operations ufs_symlink_inode_operations;
 
-/* truncate.c */
-extern void ufs_truncate_blocks(struct inode *);
-extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
-
 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
 {
 	return sb->s_fs_info;