Tracker: Remove old (bitmap) icons.

Before removing each of these, I verified that:
  * there was already a HVIF of the icon in this rdef file
  * the "MICN" constant was not used anywhere in the tree

There are a few icons left (e.g. BeBox icon) that don't have HIVF
equivalents (at least not in this file.)

src/kits/tracker/TrackerIcons.h

@@ -66,38 +66,9 @@ enum {
 	R_ConfigDirIcon = 1033,
 	R_MoveStatusIcon = 1039,
 	R_CopyStatusIcon = 1040,
-	R_MICN_AppIcon = 1000,
-	R_MICN_FileIcon = 1001,
-	R_MICN_TrashIcon = 1003,
-	R_MICN_TrashFullIcon = 1004,
-	R_MICN_PrinterIcon = 1007,
-	R_MICN_FloppyIcon = 1011,
-	R_MICN_CDIcon = 1013,
 	R_MICN_BeBoxIcon = 1014,
-	R_MICN_BookmarkIcon = 1015,
-	R_MICN_PersonIcon = 1016,
-	R_MICN_BrokenLinkIcon = 1017,
-	R_MICN_DeskIcon = 1018,
-	R_MICN_HomeDirIcon = 1019,
-	R_MICN_BeosFolderIcon = 1020,
-	R_MICN_BootVolumeIcon = 1021,
-	R_MICN_FontDirIcon = 1022,
-	R_MICN_AppsDirIcon = 1023,
-	R_MICN_PrefsDirIcon = 1024,
-	R_MICN_MailDirIcon = 1025,
-	R_MICN_QueryDirIcon = 1026,
-	R_MICN_SpoolFileIcon = 1027,
-	R_MICN_GenericPrinterIcon = 1028,
-	R_MICN_DevelopDirIcon = 1029,
-	R_MICN_DownloadDirIcon = 1030,
-	R_MICN_PersonDirIcon = 1031,
-	R_MICN_UtilDirIcon = 1032,
-	R_MICN_ConfigDirIcon = 1033,
 	R_MSGG_RedBarberPoleBits = 1037,
 	R_BarberPoleBitmap = 1038,
-	R_MoveStatusBitmap = 1039,
-	R_CopyStatusBitmap = 1040,
-	R_TrashStatusBitmap = 1041,
 	R_ResBackNav = 1042,
 	R_ResForwNav = 1043,
 	R_ResUpNav = 1044,