Remove assert for XCB_GE_GENERIC

[kvark]

Closes #257

This looks like a logical mistake in the code. The events logic is the following:

pub(crate) unsafe fn resolve_event(
    event: *mut xcb_generic_event_t,
    extension_data: &[ExtensionData],
) -> Event {
    let response_type = (*event).response_type & 0x7F;

    if response_type == XCB_GE_GENERIC {
        //  Special handler for GE_GENERIC
    }

    for data in extension_data {
        if response_type >= data.first_event && data.first_event != 0 {
            // Handle extensions here
        }
    }

    x::Event::resolve_wire_event(0, event) // CRASH HERE

We can either refactor resolve_event to avoid going into resolve_wire_event if the first check passes. Or we can simply remove the debug assert. The resolve_wire_event will gracefully return None in this case.resolve_wire_event

[rtbo]

closed by #260