Remove redundant GET

Detail:
  s/Wimp - IO header doesn't appear to be necessary for build, so don't get it
Admin:
  Tested with PlingSystem build (new "26" machine type aims to be machine-independent, so doesn't define $GetIO)
  Untested at runtime


Version 5.54. Tagged as 'Wimp-5_54'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "5.53"
-Module_Version          SETA    553
+Module_MajorVersion     SETS    "5.54"
+Module_Version          SETA    554
 Module_MinorVersion     SETS    ""
-Module_Date             SETS    "23 May 2016"
-Module_ApplicationDate  SETS    "23-May-16"
+Module_Date             SETS    "28 May 2016"
+Module_ApplicationDate  SETS    "28-May-16"
 Module_ComponentName    SETS    "Wimp"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/Desktop/Wimp"
-Module_FullVersion      SETS    "5.53"
-Module_HelpVersion      SETS    "5.53 (23 May 2016)"
+Module_FullVersion      SETS    "5.54"
+Module_HelpVersion      SETS    "5.54 (28 May 2016)"
                         END

VersionNum

-/* (5.53)
+/* (5.54)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        5.53
+#define Module_MajorVersion_CMHG        5.54
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                23 May 2016
+#define Module_Date_CMHG                28 May 2016
 
-#define Module_MajorVersion             "5.53"
-#define Module_Version                  553
+#define Module_MajorVersion             "5.54"
+#define Module_Version                  554
 #define Module_MinorVersion             ""
-#define Module_Date                     "23 May 2016"
+#define Module_Date                     "28 May 2016"
 
-#define Module_ApplicationDate          "23-May-16"
+#define Module_ApplicationDate          "28-May-16"
 
 #define Module_ComponentName            "Wimp"
 #define Module_ComponentPath            "castle/RiscOS/Sources/Desktop/Wimp"
 
-#define Module_FullVersion              "5.53"
-#define Module_HelpVersion              "5.53 (23 May 2016)"
-#define Module_LibraryVersionInfo       "5:53"
+#define Module_FullVersion              "5.54"
+#define Module_HelpVersion              "5.54 (28 May 2016)"
+#define Module_LibraryVersionInfo       "5:54"

s/Wimp

@@ -27,7 +27,6 @@ Module_BaseAddr
         GET     Hdr:Macros
         GET     Hdr:System
         GET     Hdr:Machine.<Machine>
-        $GetIO
         GET     Hdr:CMOS
         GET     Hdr:PublicWS               ; for SvcTable
         GET     Hdr:ModHand