Remove unused git.checkout and git.reset functions

Signed-off-by: Peter Grayson <[email protected]>

Author: jpgrayson

stgit/git.py

@@ -685,15 +685,6 @@ def diff(files=None, rev1='HEAD', rev2=None, diff_flags=[], binary=True):
         return b''
 
 
-def checkout(tree_id):
-    """Check out the given tree_id
-    """
-    try:
-        GRun('read-tree', '--reset', '-u', tree_id).run()
-    except GitRunException:
-        raise GitException('Failed "git read-tree" --reset %s' % tree_id)
-
-
 def switch(tree_id, keep=False):
     """Switch the tree to the given id
     """
@@ -710,17 +701,6 @@ def switch(tree_id, keep=False):
     __set_head(tree_id)
 
 
-def reset(tree_id=None):
-    """Revert the tree changes relative to the given tree_id. It removes
-    any local changes
-    """
-    if not tree_id:
-        tree_id = get_head()
-
-    checkout(tree_id)
-    __set_head(tree_id)
-
-
 def apply_patch(filename=None, diff=None, base=None, reject=False, strip=None):
     """Apply a patch onto the current or given index. There must not
     be any local changes in the tree, otherwise the command fails