Drop Shopify rules

Because support for ESLint 9 doesn't seem to be coming any time soon: Shopify/web-configs#425

base.json

@@ -11,7 +11,6 @@
     "no-constructor-bind",
     "ext",
     "putout",
-    "@shopify",
     "regexp",
     "anti-trojan-source"
   ],
@@ -658,8 +657,6 @@
       { "exceptBetweenSingleLines": true }
     ],
 
-    "@shopify/no-useless-computed-properties": "error",
-
     "regexp/match-any": "error",
     "regexp/no-empty-capturing-group": "error",
     "regexp/no-dupe-characters-character-class": "error",

package.json

@@ -59,7 +59,6 @@
     "@relaycorp/shared-config": "^1.14.1"
   },
   "dependencies": {
-    "@shopify/eslint-plugin": "^45.0.0",
     "@typescript-eslint/eslint-plugin": "^6.19.1",
     "@typescript-eslint/parser": ">= 6.21.0",
     "eslint": ">= 8",

ts-for-js.json

@@ -5,7 +5,6 @@
     "@typescript-eslint",
     "sort-class-members",
     "decorator-position",
-    "@shopify"
   ],
 
   "rules": {
@@ -171,9 +170,6 @@
       }
     ],
 
-    "decorator-position/decorator-position": ["error", {"properties": "above"}],
-
-    "@shopify/prefer-class-properties": "error",
-    "@shopify/no-fully-static-classes": "error"
+    "decorator-position/decorator-position": ["error", {"properties": "above"}]
   }
 }

ts.json

@@ -98,8 +98,6 @@
           { "avoidEscape": true, "allowTemplateLiterals": false }
         ],
 
-        "@shopify/typescript/prefer-singular-enums": "error",
-
         "import/no-unused-modules": [
           "error",
           { "missingExports": false, "unusedExports": true }