Remove unused files from src/app/zap-templates/zcl/data-model/draft/ (

#30895)

* Remove files that do not seem to contain any used types. Trying to make sure drafts is clean (as we have all clusters in draft already deprecated)

* Remove one more unused file

* Remove all draft types - since they have no associated cluster id, it is unclear to me if we ever use them

* Update comment a bit

---------

Co-authored-by: Andrei Litvin <andreilitvin@google.com>

src/app/clusters/thermostat-user-interface-configuration-server/thermostat-user-interface-configuration-server.cpp

@@ -26,10 +26,7 @@ using namespace chip::app::Clusters::ThermostatUserInterfaceConfiguration;
 using chip::Protocols::InteractionModel::Status;
 
 namespace {
-//
-// Those types are defined as drafts in
-// src/app/zap-templates/zcl/data-model/draft/types/thermostat-user-interface-configuration.xml
-//
+
 enum class TemperatureDisplayMode : uint8_t
 {
  kCelsius = 0x0,