e2fsck: drop redundant checks of symlink i_size

e2fsck: drop redundant checks of symlink i_size

e2fsck_pass1_check_symlink() verifies that the symlink inode's i_size is
less than the buffer length (60 for fast symlinks, fs->blocksize for
slow symlinks).  But it also verifies that len == i_size &&
len < buflen, which already implies i_size < buflen.  Thus, remove the
redundant checks of i_size.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>