Remove unused imports
There are several imports that are not used. Remove them.
Change-Id: I2ac3be66827bd68d3faedcef7d6bbf30ea01d3f2
diff --git a/subcmds/cherry_pick.py b/subcmds/cherry_pick.py
index 8da3a75..7890af4 100644
--- a/subcmds/cherry_pick.py
+++ b/subcmds/cherry_pick.py
@@ -13,7 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-import sys, re, string, random, os
+import sys, re
from command import Command
from git_command import GitCommand
diff --git a/subcmds/download.py b/subcmds/download.py
index 0ea45c3..0abe90d 100644
--- a/subcmds/download.py
+++ b/subcmds/download.py
@@ -13,7 +13,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-import os
import re
import sys
diff --git a/subcmds/grep.py b/subcmds/grep.py
index 1cb5650..0dc8f9f 100644
--- a/subcmds/grep.py
+++ b/subcmds/grep.py
@@ -14,7 +14,6 @@
# limitations under the License.
import sys
-from optparse import SUPPRESS_HELP
from color import Coloring
from command import PagedCommand
from git_command import git_require, GitCommand
diff --git a/subcmds/rebase.py b/subcmds/rebase.py
index 20662b1..2c1752d 100644
--- a/subcmds/rebase.py
+++ b/subcmds/rebase.py
@@ -17,8 +17,6 @@
from command import Command
from git_command import GitCommand
-from git_refs import GitRefs, HEAD, R_HEADS, R_TAGS, R_PUB, R_M
-from error import GitError
class Rebase(Command):
common = True