all: go mod tidy all modules under x/tools

CL 183264 accidentally introduced a circular modular reference from
golang.org/x/tools -> golang.org/x/tools/gopls.

Fixed by running go mod tidy on all modules under the x/tools repo for
good measure.

Change-Id: Ib09b111315cb107bc4e34015b74266d2522f33fd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184018
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/go.mod b/go.mod
index f35bc2b..0984a83 100644
--- a/go.mod
+++ b/go.mod
@@ -5,5 +5,4 @@
 require (
 	golang.org/x/net v0.0.0-20190311183353-d8887717615a
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58
-	golang.org/x/tools/gopls v0.1.0 // indirect
 )
diff --git a/go.sum b/go.sum
index eae6dd7..4a6c301 100644
--- a/go.sum
+++ b/go.sum
@@ -5,6 +5,3 @@
 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 v0.0.0-20190612231717-10539ce30318/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
-golang.org/x/tools/gopls v0.1.0 h1:e5o2xK2HU//kzIRypLBw6/8pXdWuYDd8pliYpnQuNw8=
-golang.org/x/tools/gopls v0.1.0/go.mod h1:p8Q0IUu6EEeGxqmoN/g6Et3gReLCGA7PtNRdyOxcWJE=
diff --git a/gopls/go.sum b/gopls/go.sum
index b17aade..95aef0b 100644
--- a/gopls/go.sum
+++ b/gopls/go.sum
@@ -4,5 +4,3 @@
 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 v0.0.0-20190612180059-59534d075a87 h1:RZgRBvCwrKVLcEd+O/QbyISA6RAPPLTYHdPw4Nk0Wz0=
-golang.org/x/tools v0.0.0-20190612180059-59534d075a87/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=