revert statix fixes for empty_pattern

empty_pattern forces {...} to be converted to {_}, which breaks
situations where an import is done multiple ways with the same
attributes, and only some of the imported files use those
attributes (ex. systems/<host>/default.nix)

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

statix.toml

@@ -0,0 +1,4 @@
+disabled = ["empty_pattern"]
+nix_version = '2.4'
+ignore = ['.direnv']
+