General: Toss out PRI macro usage

Now that VS supports more printf specifiers, these aren't necessary

Source/Core/DolphinWX/ISOFile.cpp

@@ -202,7 +202,7 @@ std::string GameListItem::CreateCacheFilename()
 
 	// Filename.extension_HashOfFolderPath_Size.cache
 	// Append hash to prevent ISO name-clashing in different folders.
-	Filename.append(StringFromFormat("%s_%x_%" PRIx64 ".cache",
+	Filename.append(StringFromFormat("%s_%x_%llx.cache",
 		extension.c_str(), HashFletcher((const u8 *)LegalPathname.c_str(), LegalPathname.size()),
 		File::GetSize(m_FileName)));
 

Source/Core/DolphinWX/ISOProperties.cpp

@@ -112,7 +112,7 @@ CISOProperties::CISOProperties(const std::string& fileName, wxWindow* parent, wx
 		u8 game_id_bytes[8];
 		if (OpenISO->GetTitleID(game_id_bytes))
 		{
-			game_id = StringFromFormat("%016" PRIx64, Common::swap64(game_id_bytes));
+			game_id = StringFromFormat("%016llx", Common::swap64(game_id_bytes));
 		}
 	}