Remove some unnecessary #include directives

src/prefs/BatchPrefs.cpp

@@ -23,10 +23,7 @@ setting used in debugging batch (aka macros) processing.
 
 #include "../Languages.h"
 #include "../Prefs.h"
-#include "../Project.h"
-#include "../BatchCommandDialog.h"
 #include "../ShuttleGui.h"
-#include "../toolbars/ToolManager.h"
 
 BEGIN_EVENT_TABLE(BatchPrefs, PrefsPanel)
 END_EVENT_TABLE()

src/prefs/EffectsPrefs.cpp

@@ -26,7 +26,6 @@
 #include <wx/defs.h>
 
 #include "../Languages.h"
-#include "../PluginManager.h"
 #include "../Prefs.h"
 #include "../ShuttleGui.h"
 

src/prefs/ExtImportPrefs.cpp

@@ -23,6 +23,7 @@
 
 #include "../Prefs.h"
 #include "../ShuttleGui.h"
+#include "../import/Import.h"
 #include "../widgets/ErrorDialog.h"
 #include "../widgets/Grid.h"
 

src/prefs/ExtImportPrefs.h

@@ -16,7 +16,6 @@
 
 #include "PrefsPanel.h"
 
-#include "../import/Import.h"
 #include "../import/ImportPlugin.h"
 
 class wxButton;
@@ -24,6 +23,7 @@ class wxGridEvent;
 class wxGridRangeSelectEvent;
 class wxListCtrl;
 class wxListEvent;
+class ExtImportItem;
 class ExtImportPrefs;
 class Grid;
 class ShuttleGui;

src/prefs/MidiIOPrefs.cpp

@@ -37,13 +37,13 @@ other settings.
 
 #include "../../lib-src/portmidi/pm_common/portmidi.h"
 
-#include "../AudioIO.h"
 #include "../Internat.h"
 #include "../Prefs.h"
-#include "../Project.h"
 #include "../ShuttleGui.h"
 #include "../widgets/ErrorDialog.h"
 
+#define DEFAULT_SYNTH_LATENCY 5
+
 enum {
    HostID = 10000,
    PlayID,

src/prefs/TracksPrefs.cpp

@@ -27,7 +27,6 @@
 
 #include "../Prefs.h"
 #include "../ShuttleGui.h"
-#include "../WaveTrack.h"
 
 #include "../Internat.h"