rm tier interface

Author: thedavidmeister

.gitmodules

@@ -13,9 +13,6 @@
 [submodule "lib/forge-std"]
 	path = lib/forge-std
 	url = https://github.com/foundry-rs/forge-std
-[submodule "lib/rain.tier.interface"]
-	path = lib/rain.tier.interface
-	url = https://github.com/rainlanguage/rain.tier.interface
 [submodule "lib/solady"]
 	path = lib/solady
 	url = https://github.com/Vectorized/solady

foundry.lock

@@ -17,9 +17,6 @@
   "lib/rain.string": {
     "rev": "85d0074c8cd1fdca3285366c15bc9b44b84ad5e9"
   },
-  "lib/rain.tier.interface": {
-    "rev": "047096f4b95535dbaf86c1fb4d5eedf6052cae6e"
-  },
   "lib/rain.verify.interface": {
     "rev": "2c6942e5f1f96783f6173d59817e3de6e47e93ff"
   },