Don't print clearance lines.

Fixes https://gitlab.com/kicad/code/kicad/issues/10883

pcbnew/pcb_painter.cpp

@@ -642,7 +642,8 @@ void PCB_PAINTER::draw( const PCB_TRACK* aTrack, int aLayer )
     }
 
     // Clearance lines
-    if( pcbconfig() && pcbconfig()->m_Display.m_TrackClearance == SHOW_WITH_VIA_ALWAYS )
+    if( pcbconfig() && pcbconfig()->m_Display.m_TrackClearance == SHOW_WITH_VIA_ALWAYS
+            && !m_pcbSettings.m_isPrinting )
     {
         int clearance = aTrack->GetOwnClearance( m_pcbSettings.GetActiveLayer() );
 
@@ -684,7 +685,8 @@ void PCB_PAINTER::draw( const PCB_ARC* aArc, int aLayer )
     }
 
     // Clearance lines
-    if( pcbconfig() && pcbconfig()->m_Display.m_TrackClearance == SHOW_WITH_VIA_ALWAYS )
+    if( pcbconfig() && pcbconfig()->m_Display.m_TrackClearance == SHOW_WITH_VIA_ALWAYS
+            && !m_pcbSettings.m_isPrinting )
     {
         int clearance = aArc->GetOwnClearance( m_pcbSettings.GetActiveLayer() );
 
@@ -855,7 +857,8 @@ void PCB_PAINTER::draw( const PCB_VIA* aVia, int aLayer )
 
     // Clearance lines
     if( pcbconfig() && pcbconfig()->m_Display.m_TrackClearance == SHOW_WITH_VIA_ALWAYS
-            && aLayer != LAYER_VIA_HOLES )
+            && aLayer != LAYER_VIA_HOLES
+            && !m_pcbSettings.m_isPrinting )
     {
         PCB_LAYER_ID activeLayer = m_pcbSettings.GetActiveLayer();
         double       radius;
@@ -1263,7 +1266,8 @@ void PCB_PAINTER::draw( const PAD* aPad, int aLayer )
     }
 
     if( pcbconfig() && pcbconfig()->m_Display.m_PadClearance
-            && ( aLayer == LAYER_PAD_FR || aLayer == LAYER_PAD_BK || aLayer == LAYER_PADS_TH ) )
+            && ( aLayer == LAYER_PAD_FR || aLayer == LAYER_PAD_BK || aLayer == LAYER_PADS_TH )
+            && !m_pcbSettings.m_isPrinting )
     {
         /* Showing the clearance area is not obvious.
          * - A pad can be removed from some copper layers.