internal/lsp: update gopls mod file

Change-Id: I029c690d1797b12af186fd6e445d15d3c5a27412
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194685
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/gopls/go.mod b/gopls/go.mod
index a32adf1..4a3c612 100644
--- a/gopls/go.mod
+++ b/gopls/go.mod
@@ -2,6 +2,6 @@
 
 go 1.11
 
-require golang.org/x/tools v0.0.0-20190909191543-dab579b76279
+require golang.org/x/tools v0.0.0-20190911193649-b13fa046aa37
 
 replace golang.org/x/tools => ../
diff --git a/gopls/go.sum b/gopls/go.sum
index c0236d2..d6e776a 100644
--- a/gopls/go.sum
+++ b/gopls/go.sum
@@ -4,7 +4,5 @@
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20190723021737-8bb11ff117ca h1:SqwJrz6xPBlCUltcEHz2/p01HRPR+VGD+aYLikk8uas=
-golang.org/x/tools v0.0.0-20190723021737-8bb11ff117ca/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=