Remove inspect-module command (hashicorp#1642)

* Remove inspect module command

* Remove outdated troubleshooting docs

docs/TROUBLESHOOTING.md

@@ -184,32 +184,3 @@ Path supports template syntax. This allows for separation of logs while accounti
  - `ppid` - parent process ID (typically editor's or editor plugin's PID)
 
 The path is interpreted as [Go template](https://golang.org/pkg/text/template/), e.g. `/tmp/terraform-ls-memprofile-{{timestamp}}.log`.
-
-## "No root module found for ... functionality may be limited"
-
-Most of the language server features depend on initialized root modules
-(i.e. folder with `*.tf` files where you ran `terraform init` successfully).
-and server's ability to discover them within the hierarchy and match them
-with files being open in the editor.
-
-This functionality should cover many hierarchies, but it may not cover yours.
-If it appears that root modules aren't being discovered or matched the way
-they should be, it can be useful to use `inspect-module` to obtain
-the discovery results and provide them to maintainers in a bug report.
-
-Point it to the same directory that you tried to open in your IDE/editor
-and wait for the output - it may take some seconds or low minutes
-depending on the complexity of your hierarchy and number of root modules in it.
-
-```
-$ terraform-ls inspect-module /path/to/dir
-```
-
-## "Unable to retrieve schemas for ..."
-
-The process of obtaining the schema currently requires access to the state,
-which in turn means that if the code itself doesn't have enough context
-to obtain the state and/or there isn't context available from config file(s)
-in standard locations you may need to provide that extra context.
-
-See https://github.com/hashicorp/terraform-ls/issues/128 for more.

main.go

@@ -38,11 +38,6 @@ func main() {
 				AlgoliaAPIKey: algoliaAPIKey,
 			}, nil
 		},
-		"inspect-module": func() (cli.Command, error) {
-			return &cmd.InspectModuleCommand{
-				Ui: ui,
-			}, nil
-		},
 		"version": func() (cli.Command, error) {
 			return &cmd.VersionCommand{
 				Ui:      ui,