This warning doesn't really make sense, since the `enable()` call is
meant to be run before the `lsp.config` calls. It will be logged many
times (once for each enabled LSP) at startup.
This is especially annoying because calling `enable()` after
configuration causes the first opened buffer not to have its filetype
set in some situations. This is a separate bug which really needs to be
fixed, and makes this superfluous logging more likely.
(cherry picked from commit 3c4acc0f1a)
a7eb110098