Remove GDAssetManager

It is no longer needed since UAbilitySystemGlobals::InitGlobalData() is automatically called starting in UE 5.3.

Author: tranek

Config/DefaultEngine.ini

@@ -11,7 +11,6 @@ MinimumiOSVersion=IOS_12
 +ActiveGameNameRedirects=(OldGameName="/Script/TP_ThirdPerson",NewGameName="/Script/GASDocumentation")
 +ActiveClassRedirects=(OldClassName="TP_ThirdPersonGameMode",NewClassName="GASDocumentationGameMode")
 +ActiveClassRedirects=(OldClassName="TP_ThirdPersonCharacter",NewClassName="GASDocumentationCharacter")
-AssetManagerClassName=/Script/GASDocumentation.GDAssetManager
 
 [/Script/HardwareTargeting.HardwareTargetingSettings]
 TargetedHardwareClass=Desktop