Enable storing pin function (pin name) in pads.

This is useful in board routing.
It is plotted in pad attribute TO.P in Gerber files.

common/advanced_config.cpp

@@ -165,7 +165,6 @@ ADVANCED_CFG::ADVANCED_CFG()
     // Init defaults - this is done in case the config doesn't exist,
     // then the values will remain as set here.
     m_EnableUsePadProperty = false;
-    m_EnableUsePinFunction = false;
     m_realTimeConnectivity = true;
     m_coroutineStackSize = AC_STACK::default_stack;
 
@@ -204,9 +203,6 @@ void ADVANCED_CFG::loadSettings( wxConfigBase& aCfg )
     configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::UsePadProperty,
                                                 &m_EnableUsePadProperty, false ) );
 
-    configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::UsePinFunction,
-                                                &m_EnableUsePinFunction, false ) );
-
     configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::RealtimeConnectivity,
                                                 &m_realTimeConnectivity, false ) );
 

include/advanced_config.h

@@ -68,11 +68,6 @@ public:
      */
     static const ADVANCED_CFG& GetCfg();
 
-    /**
-     * Enable pad pin function handling in pcbnew.
-     */
-    bool m_EnableUsePinFunction;
-
     /**
      * Enable pad property handling in pcbnew.
      */

pcbnew/kicad_plugin.cpp

@@ -1424,15 +1424,12 @@ void PCB_IO::format( D_PAD* aPad, int aNestLevel ) const
         StrPrintf( &output, " (net %d %s)", m_mapping->Translate( aPad->GetNetCode() ),
                    m_out->Quotew( aPad->GetNetname() ).c_str() );
 
-    if( ADVANCED_CFG::GetCfg().m_EnableUsePinFunction )
-    {
     // Add pinfunction, if exists.
     // Pin function is closely related to nets, so if CTL_OMIT_NETS is set,
     // omit also pin function (for instance when saved from library editor)
     if( !(m_ctl & CTL_OMIT_NETS) && !aPad->GetPinFunction().IsEmpty() )
         StrPrintf( &output, " (pinfunction %s)",
                    m_out->Quotew( aPad->GetPinFunction() ).c_str() );
-    }
 
     if( aPad->GetPadToDieLength() != 0 )
         StrPrintf( &output, " (die_length %s)",