Tracker: move deprecated cruft to FBCPadding.cpp.

The Be Book [1] states that these are supposed to be C functions,
but the comment (see diff) said they were deprecated, and the fact
that they were in a .cpp file (and I checked with "nm") made them
C++ functions.

I can't recall any applications failing to start because these
symbols were unresolved, so we might be able to just remove them...

[1]: https://www.haiku-os.org/legacy-docs/bebook/BFilePanel_Overview.html

src/kits/tracker/FBCPadding.cpp

@@ -96,6 +96,19 @@ void BFilePanel::_ReservedFilePanel8() {}
 #if __GNUC__ && __GNUC__ < 3
 extern "C" {
 
+_EXPORT void
+run_open_panel__Fv()
+{
+	(new TFilePanel())->Show();
+}
+
+
+_EXPORT void
+run_save_panel__Fv()
+{
+	(new TFilePanel(B_SAVE_PANEL))->Show();
+}
+
 _EXPORT BFilePanel*
 __10BFilePanel15file_panel_modeP10BMessengerP9entry_refUlbP8BMessageP10BRefFilterT5T5
 (void* self,

src/kits/tracker/FilePanel.cpp

@@ -53,27 +53,6 @@ All rights reserved.
 #ifndef _IMPEXP_ROOT
 #	define _IMPEXP_ROOT
 #endif
-#ifndef _IMPEXP_TRACKER
-#	define _IMPEXP_TRACKER
-#endif
-
-// these two calls are deprecated
-extern _IMPEXP_TRACKER void run_open_panel();
-extern _IMPEXP_TRACKER void run_save_panel();
-
-
-void
-run_open_panel()
-{
-	(new TFilePanel())->Show();
-}
-
-
-void
-run_save_panel()
-{
-	(new TFilePanel(B_SAVE_PANEL))->Show();
-}
 
 
 //	#pragma mark - BFilePanel