Remove support for unused product interfaces (#24965)

We no longer rely on commands and hooks for products, so simplify this code.

server/platform/services/telemetry/mocks/ServerIface.go

@@ -13,8 +13,6 @@ import (
 	model "github.com/mattermost/mattermost/server/public/model"
 
 	plugin "github.com/mattermost/mattermost/server/public/plugin"
-
-	product "github.com/mattermost/mattermost/server/v8/channels/product"
 )
 
 // ServerIface is an autogenerated mock type for the ServerIface type
@@ -126,22 +124,6 @@ func (_m *ServerIface) HTTPService() httpservice.HTTPService {
 	return r0
 }
 
-// HooksManager provides a mock function with given fields:
-func (_m *ServerIface) HooksManager() *product.HooksManager {
-	ret := _m.Called()
-
-	var r0 *product.HooksManager
-	if rf, ok := ret.Get(0).(func() *product.HooksManager); ok {
-		r0 = rf()
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*product.HooksManager)
-		}
-	}
-
-	return r0
-}
-
 // IsLeader provides a mock function with given fields:
 func (_m *ServerIface) IsLeader() bool {
 	ret := _m.Called()