LSP: Remove diagnostic message handling in locations_to_items

`locations_to_items` is for turning `Location[]` into items, not for
`Diagnostic[]`

runtime/lua/vim/lsp/callbacks.lua

@@ -33,7 +33,6 @@ M['textDocument/publishDiagnostics'] = function(_, _, result)
   util.buf_diagnostics_underline(bufnr, result.diagnostics)
   util.buf_diagnostics_virtual_text(bufnr, result.diagnostics)
   util.buf_diagnostics_signs(bufnr, result.diagnostics)
-  -- util.set_loclist(result.diagnostics)
   vim.api.nvim_command("doautocmd User LspDiagnosticsChanged")
 end
 

runtime/lua/vim/lsp/util.lua

@@ -797,7 +797,7 @@ function M.locations_to_items(locations)
   for _, d in ipairs(locations) do
     local start = d.range.start
     local fname = assert(vim.uri_to_fname(d.uri))
-    table.insert(grouped[fname], {start = start, msg= d.message })
+    table.insert(grouped[fname], {start = start})
   end
 
 
@@ -824,7 +824,7 @@ function M.locations_to_items(locations)
             filename = fname,
             lnum = row + 1,
             col = col + 1;
-            text = temp.msg or line;
+            text = line;
           })
         end
       end