Remove the hardcoded device tick in Server::HandleCommands

This was here to ensure all callbacks return, but this can now
be done by calling device.Tick - which Chromium does
periodically. Remove it now, especially since it will be incorrect
when the wire supports more than one device.

Bug: dawn:384
Change-Id: If948ffe8931be7ba989f733efd64549d0c56b382
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/35841
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

generator/templates/dawn_wire/server/ServerHandlers.cpp

@@ -90,8 +90,6 @@ namespace dawn_wire { namespace server {
     {% endfor %}
 
     const volatile char* Server::HandleCommandsImpl(const volatile char* commands, size_t size) {
-        mProcs.deviceTick(DeviceObjects().Get(1)->handle);
-
         while (size >= sizeof(CmdHeader) + sizeof(WireCmd)) {
             // Start by chunked command handling, if it is done, then it means the whole buffer
             // was consumed by it, so we return a pointer to the end of the commands.