diff --git a/src/duckstation-qt/qthost.cpp b/src/duckstation-qt/qthost.cpp
index 47c472749..6b3814f1e 100644
--- a/src/duckstation-qt/qthost.cpp
+++ b/src/duckstation-qt/qthost.cpp
@@ -1266,7 +1266,7 @@ void EmuThread::changeDiscFromPlaylist(quint32 index)
     return;
 
   if (!System::SwitchMediaSubImage(index))
-    Host::ReportFormattedErrorAsync("Error", "Failed to switch to subimage %u", index);
+    errorReported(tr("Error"), tr("Failed to switch to subimage %1").arg(index));
 }
 
 void EmuThread::setCheatEnabled(quint32 index, bool enabled)
diff --git a/src/util/host.cpp b/src/util/host.cpp
index 423370689..735927236 100644
--- a/src/util/host.cpp
+++ b/src/util/host.cpp
@@ -125,22 +125,3 @@ void Host::ClearTranslationCache()
   s_translation_string_cache_pos = 0;
   s_translation_string_mutex.unlock();
 }
-
-void Host::ReportFormattedErrorAsync(std::string_view title, const char* format, ...)
-{
-  std::va_list ap;
-  va_start(ap, format);
-  std::string message(StringUtil::StdStringFromFormatV(format, ap));
-  va_end(ap);
-  ReportErrorAsync(title, message);
-}
-
-bool Host::ConfirmFormattedMessage(std::string_view title, const char* format, ...)
-{
-  std::va_list ap;
-  va_start(ap, format);
-  std::string message = StringUtil::StdStringFromFormatV(format, ap);
-  va_end(ap);
-
-  return ConfirmMessage(title, message);
-}
diff --git a/src/util/host.h b/src/util/host.h
index 5caba2f43..8028975a2 100644
--- a/src/util/host.h
+++ b/src/util/host.h
@@ -31,11 +31,9 @@ void ReportFatalError(std::string_view title, std::string_view message);
 
 /// Displays an asynchronous error on the UI thread, i.e. doesn't block the caller.
 void ReportErrorAsync(std::string_view title, std::string_view message);
-void ReportFormattedErrorAsync(std::string_view title, const char* format, ...);
 
 /// Displays a synchronous confirmation on the UI thread, i.e. blocks the caller.
 bool ConfirmMessage(std::string_view title, std::string_view message);
-bool ConfirmFormattedMessage(std::string_view title, const char* format, ...);
 
 /// Returns the user agent to use for HTTP requests.
 std::string GetHTTPUserAgent();