diff --git a/src/services/signatureHelp.ts b/src/services/signatureHelp.ts
index 7c4f8fb016dd4..b250ad494675f 100644
--- a/src/services/signatureHelp.ts
+++ b/src/services/signatureHelp.ts
@@ -1,168 +1,6 @@
///
/* @internal */
namespace ts.SignatureHelp {
-
- // A partially written generic type expression is not guaranteed to have the correct syntax tree. the expression could be parsed as less than/greater than expression or a comma expression
- // or some other combination depending on what the user has typed so far. For the purposes of signature help we need to consider any location after "<" as a possible generic type reference.
- // To do this, the method will back parse the expression starting at the position required. it will try to parse the current expression as a generic type expression, if it did succeed it
- // will return the generic identifier that started the expression (e.g. "foo" in "foo