Inline remaining usage of ILuaLibraries.EngineName

Author: YoshiRulz

src/BizHawk.Client.Common/lua/CommonLibs/ClientLuaLibrary.cs

@@ -92,7 +92,7 @@ public void FrameSkip(int numFrames)
 
 		[LuaMethod("get_lua_engine", "returns the name of the Lua engine currently in use")]
 		public string GetLuaEngine()
-			=> _luaLibsImpl.EngineName;
+			=> "NLua+Lua";
 
 		[LuaMethodExample("client.invisibleemulation( true );")]
 		[LuaMethod("invisibleemulation", "Disables and enables emulator updates")]

src/BizHawk.Client.Common/lua/ILuaLibraries.cs

@@ -6,8 +6,6 @@ public interface ILuaLibraries
 	{
 		LuaDocumentation Docs { get; }
 
-		string EngineName { get; }
-
 		/// <remarks>pretty hacky... we don't want a lua script to be able to restart itself by rebooting the core</remarks>
 		bool IsRebootingCore { get; set; }
 

src/BizHawk.Client.EmuHawk/tools/Lua/LuaLibraries.cs

@@ -172,8 +172,6 @@ void EnumerateLuaFunctions(string name, Type type, LuaLibraryBase instance)
 
 		private EmulationLuaLibrary EmulationLuaLibrary => (EmulationLuaLibrary)Libraries[typeof(EmulationLuaLibrary)];
 
-		public string EngineName => "NLua+Lua";
-
 		public bool IsRebootingCore { get; set; }
 
 		public bool IsUpdateSupressed { get; set; }