Merge pull request ipfs#1498 from ipfs/remove-legacy-mdlint-config

Delete legacy .markdownlint.json

Author: 2color

.markdownlint.json

@@ -68,27 +68,7 @@
   "MD012": true,
 
   // MD013/line-length - Line length
-  // Very much unsure on this one
-  "MD013": {
-    // Number of characters
-    "line_length": 80,
-    // Number of characters for headings
-    "heading_line_length": 80,
-    // Number of characters for code blocks
-    "code_block_line_length": 80,
-    // Include code blocks
-    "code_blocks": true,
-    // Include tables
-    "tables": true,
-    // Include headings
-    "headings": true,
-    // Include headings
-    "headers": true,
-    // Strict length checking
-    "strict": false,
-    // Stern length checking
-    "stern": false
-  },
+  "MD013": false,
 
   // MD014/commands-show-output - Dollar signs used before commands without showing output
   // Seems obvious, probably good to enforce