util.sqlite3: Clean up unused variables
Many leftovers from the earlier version of util.sql this was based on
and cleanup applied there since then.
-- Compatibility layer for bitwise operations
-- First try the bit32 lib
-- Lua 5.3 has it with compat enabled
-- Lua 5.2 has it by default
if _G.bit32 then
return _G.bit32;
end
do
-- Lua 5.3 and 5.4 would be able to use native infix operators
local ok, bitop = pcall(require, "prosody.util.bit53")
if ok then
return bitop;
end
end
error "No bit module found. See https://prosody.im/doc/depends#bitop";