Remove Manual option from configure script.

Building the manual requires to use the manual make target, and it can be
invoked from a normal build configuration. Having a separate configure option
isn't necessary anymore.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29994 a1c6a512-1295-4272-9138-f99709370657

tools/configure

@@ -3198,13 +3198,13 @@ fi
   # this
 case $modelname in
   iriverifp7xx)
-     gdbstub="(G)DB stub, "
+     gdbstub=", (G)DB stub"
      ;;
   sansae200r|sansae200)
-     gdbstub="(I)nstaller, "
+     gdbstub=", (I)nstaller"
      ;;
   sansac200)
-     gdbstub="(E)raser, "
+     gdbstub=", (E)raser"
      ;;
   *)
      ;;
@@ -3212,7 +3212,7 @@ esac
 if [ "$ARG_TYPE" ]; then
   btype=$ARG_TYPE
 else
-  echo "Build (N)ormal, (A)dvanced, (S)imulator, (B)ootloader, (C)heckWPS, (D)atabase tool, $gdbstub(M)anual: (Defaults to N)"
+  echo "Build (N)ormal, (A)dvanced, (S)imulator, (B)ootloader, (C)heckWPS, (D)atabase tool$gdbstub: (Defaults to N)"
   btype=`input`;
 fi
 
@@ -3292,11 +3292,6 @@ fi
       esac
       echo "GDB stub build selected"
       ;;
-    [Mm])
-      toolset='';
-      apps="manual"
-      echo "Manual build selected"
-      ;;
     [Cc])
       uname=`uname`
       simcc "checkwps"