Update timeout for internal bot

Remove unused import

Change-Id: I720f7f8e6ca687ce1c1b147ce21042458e562394
diff --git a/tools/internal_test.py b/tools/internal_test.py
index 51ddfb6..7730817 100755
--- a/tools/internal_test.py
+++ b/tools/internal_test.py
@@ -63,7 +63,7 @@
 ]
 
 # Command timeout, in seconds.
-RUN_TIMEOUT = 3600 * 3
+RUN_TIMEOUT = 3600 * 6
 BOT_RUN_TIMEOUT = RUN_TIMEOUT * len(TEST_COMMANDS)
 
 def log(str):