ksys/act: rename the actor accessor to ActorLinkConstDataAccess

The 0x18-sized accessor appears to be named ActorLinkConstDataAccess
based on a source path string in the Wii U build. The 0x10-sized
base class (which we had given the name to) only holds a BaseProc and
its dtor/acquire functions live in a separate TU so let's rename it
BaseProcAccessor (unofficial name).

acquireActor is a header inline whose one copy landed in the BeamBase
object. Nothing in BeamBase calls it, so the BeamBase function that used
it was probably dead-stripped by the linker.

(AI assisted using Claude Opus 5.5)

src/Game/Actor/actPlayerCreateMgr.cpp

@@ -7,7 +7,6 @@
 #include "Game/Actor/actWeapon.h"
 #include "Game/UI/uiPauseMenuDataMgr.h"
 #include "KingSystem/ActorSystem/Profiles/actWeaponBase.h"
-#include "KingSystem/ActorSystem/actActorConstDataAccess.h"
 #include "KingSystem/ActorSystem/actActorCreator.h"
 #include "KingSystem/ActorSystem/actActorHeapUtil.h"
 #include "KingSystem/ActorSystem/actActorLinkConstDataAccess.h"
@@ -212,7 +211,7 @@ void CreatePlayerEquipActorMgr::requestCreateArmor(s32 slot_idx, const sead::Saf
     }
 
     {
-        ksys::act::ActorConstDataAccess access;
+        ksys::act::ActorLinkConstDataAccess access;
         ksys::act::acquireActor(&PlayerInfo::instance()->getPlayerLink(), &access);
         sead::Vector3f pos;
         access.getActorMtx().getTranslation(pos);