refactor: remove modelines from Lua files

Now that we have builtin EditorConfig support and a formatting check in
CI, these are not necessary.

runtime/lua/vim/lsp/buf.lua

@@ -806,4 +806,3 @@ function M.execute_command(command_params)
 end
 
 return M
--- vim:sw=2 ts=2 et

runtime/lua/vim/lsp/handlers.lua

@@ -644,4 +644,3 @@ for k, fn in pairs(M) do
 end
 
 return M
--- vim:sw=2 ts=2 et

runtime/lua/vim/lsp/log.lua

@@ -174,4 +174,3 @@ function log.should_log(level)
 end
 
 return log
--- vim:sw=2 ts=2 et

runtime/lua/vim/lsp/protocol.lua

@@ -894,4 +894,3 @@ function protocol.resolve_capabilities(server_capabilities)
 end
 
 return protocol
--- vim:sw=2 ts=2 et

runtime/lua/vim/lsp/rpc.lua

@@ -753,4 +753,3 @@ return {
   client_errors = client_errors,
   create_read_loop = create_read_loop,
 }
--- vim:sw=2 ts=2 et

runtime/lua/vim/lsp/util.lua

@@ -2154,4 +2154,3 @@ M._get_line_byte_from_position = get_line_byte_from_position
 M.buf_versions = {}
 
 return M
--- vim:sw=2 ts=2 et