fix: drop invalid filetypes javascript.jsx, typescript.tsx #4326

Problem:
`checkhealth vim.lsp` reports the following warnings:
- ⚠️ WARNING Unknown filetype 'javascript.jsx'.
- ⚠️ WARNING Unknown filetype 'typescript.tsx'.

Solution:
Remove them.

1 files changed, 1 insertions, 1 deletions

diff --git a/lsp/flow.lua b/lsp/flow.lua
index 92743816..2a887064 100644
--- a/lsp/flow.lua
+++ b/lsp/flow.lua
@@ -24,6 +24,6 @@ return {
 
     return vim.lsp.rpc.start(cmd, dispatchers)
   end,
-  filetypes = { 'javascript', 'javascriptreact', 'javascript.jsx' },
+  filetypes = { 'javascript', 'javascriptreact' },
   root_markers = { '.flowconfig' },
 }