TBR: travel: Remove .v23 from all .gitignore files.

MultiPart: 23/25

Change-Id: I8a579bbeb3eee62e5e15fa782505d8b42484e3be
diff --git a/.gitignore b/.gitignore
index 2f15d7d..62f67a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,8 +2,6 @@
 /.gradle
 /.idea
 /.jiri
-#TODO(nlacasse): Get rid of .v23 below once v23->jiri transition is complete.
-/.v23
 /account_manager-release.apk
 /bin
 /browser/ifc
@@ -12,4 +10,4 @@
 /local.properties
 /node_modules
 /server-root
-/tmp
\ No newline at end of file
+/tmp