internal/lsp: fix applyTextDocumentEdits and delete extra function

Follow-up from CL24645 246458.

Change-Id: I77872154e2aa2d6028add84dadc5d8aad05b59ee
Reviewed-on: https://go-review.googlesource.com/c/tools/+/246759
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Baum <joshbaum@google.com>
diff --git a/internal/lsp/lsp_test.go b/internal/lsp/lsp_test.go
index 2695095..4446741 100644
--- a/internal/lsp/lsp_test.go
+++ b/internal/lsp/lsp_test.go
@@ -454,12 +454,12 @@
 		if err != nil {
 			t.Fatal(err)
 		}
-		res, err = applySuggestedFixEdits(r, edits)
+		res, err = applyTextDocumentEdits(r, edits)
 		if err != nil {
 			t.Fatal(err)
 		}
 	} else {
-		res, err = applySuggestedFixEdits(r, action.Edit.DocumentChanges)
+		res, err = applyTextDocumentEdits(r, action.Edit.DocumentChanges)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -858,24 +858,6 @@
 	res := map[span.URI]string{}
 	for _, docEdits := range edits {
 		uri := docEdits.TextDocument.URI.SpanURI()
-		m, err := r.data.Mapper(uri)
-		if err != nil {
-			return nil, err
-		}
-		res[uri] = string(m.Content)
-		sedits, err := source.FromProtocolEdits(m, docEdits.Edits)
-		if err != nil {
-			return nil, err
-		}
-		res[uri] = applyEdits(res[uri], sedits)
-	}
-	return res, nil
-}
-
-func applySuggestedFixEdits(r *runner, edits []protocol.TextDocumentEdit) (map[span.URI]string, error) {
-	res := map[span.URI]string{}
-	for _, docEdits := range edits {
-		uri := docEdits.TextDocument.URI.SpanURI()
 		var m *protocol.ColumnMapper
 		// If we have already edited this file, we use the edited version (rather than the
 		// file in its original state) so that we preserve our initial changes.