Running `staticcheck ./internal/lsp/...` turned up a few instances of
dead code. Remove them.
Change-Id: Ic53db59cd0959fad960b086158eb550a624a4d91
Reviewed-on: https://go-review.googlesource.com/c/tools/+/268580
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Robert Findley <rfindley@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>