diff --git a/virtinst/util.py b/virtinst/util.py
index 64300db05..4508389e8 100644
--- a/virtinst/util.py
+++ b/virtinst/util.py
@@ -69,29 +69,6 @@ def stat_disk(path):
     return True, 0
 
 
-def blkdev_size(path):
-    """Return the size of the block device.  We can't use os.stat() as
-    that returns zero on many platforms."""
-    fd = os.open(path, os.O_RDONLY)
-    # os.SEEK_END is not present on all systems
-    size = os.lseek(fd, 0, 2)
-    os.close(fd)
-    return size
-
-
-def sanitize_arch(arch):
-    """Ensure passed architecture string is the format we expect it.
-       Returns the sanitized result"""
-    if not arch:
-        return arch
-    tmparch = arch.lower().strip()
-    if re.match(r'i[3-9]86', tmparch):
-        return "i686"
-    elif tmparch == "amd64":
-        return "x86_64"
-    return arch
-
-
 def vm_uuid_collision(conn, uuid):
     """
     Check if passed UUID string is in use by another guest of the connection