chore: move examples to separate repository

examples/flutter/quickstart/windows/.gitignore

@@ -1,17 +0,0 @@
-flutter/ephemeral/
-
-# Visual Studio user-specific files.
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-
-# Visual Studio build-related files.
-x64/
-x86/
-
-# Visual Studio cache files
-# files ending in .cache can be ignored
-*.[Cc]ache
-# but keep track of directories ending in .cache
-!*.[Cc]ache/