Remove travice badge (#68)

* Remove travice badge

* Delete .travis.yml

Author: wojsmol

.travis.yml

@@ -3,7 +3,7 @@ wp-cli/find-command
 
 Find WordPress installations on the filesystem.
 
-[![Testing](https://github.com/wp-cli/find-command/actions/workflows/testing.yml/badge.svg)](https://github.com/wp-cli/find-command/actions/workflows/testing.yml) [![Build Status](https://travis-ci.org/wp-cli/find-command.svg?branch=main)](https://travis-ci.org/wp-cli/find-command)
+[![Testing](https://github.com/wp-cli/find-command/actions/workflows/testing.yml/badge.svg)](https://github.com/wp-cli/find-command/actions/workflows/testing.yml)
 
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