[gnome-commander/gcmd-1-10] Add branch gcmd-1-10 and remove everything below in travis.yml

[Uwe Scholz <uwescholz src gnome org>]

commit 9b4ea21b33086dbfedfda109481c3aa292fff78c
Author: Uwe Scholz <u scholz83 gmx de>
Date:   Mon May 18 10:38:21 2020 +0200

    Add branch gcmd-1-10 and remove everything below in travis.yml

 .travis.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 8bf2ff32..856f33fd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,9 +11,7 @@ script:
 branches:
   only:
     - master
-    - gcmd-1-8
-    - gcmd-1-6
-    - gcmd-1-4
+    - gcmd-1-10
 
 notifications:
   recipients: