Remove all arweave.mdx files (#1056)

* Remove all arweave.mdx files

* Remove 'arweave' entry from guides metadata

* Remove 'arweave' entry from guides metadata across multiple language files

Author: itsjerryokolo

website/src/pages/ar/subgraphs/guides/_meta.js

@@ -2,7 +2,6 @@ export default {
   'subgraph-composition': '',
   'subgraph-debug-forking': '',
   near: '',
-  arweave: '',
   grafting: '',
   'subgraph-uncrashable': '',
   'transfer-to-the-graph': '',

website/src/pages/ar/subgraphs/guides/arweave.mdx

@@ -2,7 +2,7 @@ export default {
   'subgraph-composition': '',
   'subgraph-debug-forking': '',
   near: '',
-  arweave: '',
+
   grafting: '',
   'subgraph-uncrashable': '',
   'transfer-to-the-graph': '',