Remove .travis.yml

Fails with:

	find-cursor.c:19:10: fatal error: 'X11/extensions/Xdamage.h' file not found

Travis just tests if it compiles anyway ... there's not much value here
and don't want to spend time fixing it.

.gitignore

@@ -1 +1 @@
-find-cursor
+/find-cursor

.travis.yml

@@ -1,8 +0,0 @@
-language: c
-install: make
-script: make
-compiler:
-  - clang
-  - gcc
-notifications:
-  email: false