FontEditor: Remove reprobe_font()

This was used to update GlyphMapWidget on Type changes and is
no longer needed since removal of Type enumeration in bb592ae.

Userland/Applications/FontEditor/GlyphMapWidget.cpp

@@ -72,14 +72,6 @@ void GlyphMapWidget::update_glyph(int glyph)
     update(get_outer_rect(glyph));
 }
 
-void GlyphMapWidget::reprobe_font()
-{
-    VERIFY(m_font);
-    m_glyph_count = m_font->glyph_count();
-    m_selected_glyph = 0;
-    update();
-}
-
 void GlyphMapWidget::paint_event(GUI::PaintEvent& event)
 {
     GUI::Frame::paint_event(event);

Userland/Applications/FontEditor/GlyphMapWidget.h

@@ -27,7 +27,6 @@ public:
     const Gfx::BitmapFont& font() const { return *m_font; }
 
     void update_glyph(int);
-    void reprobe_font();
 
     Function<void(int)> on_glyph_selected;