Remove configuration options that aren't relevant to HLS from README

Author: lukel97

README.md

@@ -31,13 +31,6 @@ You can choose which language server to use from the "Haskell > Language Server
 
 ## Configuration options
 
-You can disable HLint and also control the maximum number of reported problems,
-
-```json
-"haskell.hlintOn": true,
-"haskell.maxNumberOfProblems": 100,
-```
-
 ### Enable/disable server
 
 You can enable or disable the chosen haskell language server via configuration. This is sometimes useful at workspace level, because multi-root workspaces do not yet allow you to manage extensions at the folder level, which can be necessary.