Revert "Define the use of SquashFS for xbin via the product"

This reverts commit fb778f809f5203abe86f88c011c641e841b84095.
diff --git a/tools/squisher b/tools/squisher
index e2665bb..190d4f7 100755
--- a/tools/squisher
+++ b/tools/squisher
@@ -31,8 +31,12 @@
 
 
 # Some products want a squashfs for xbin for space
+case "$TARGET_PRODUCT" in
+	cyanogen_dream_sapphire) WANT_SQUASHFS=1 ;;
+	*) WANT_SQUASHFS=0 ;;
+esac
 
-if [ -n "$WANT_SQUASHFS"  ]; then
+if [ "$WANT_SQUASHFS" -eq 1 ]; then
 	fatal=0
 	MKSQUASHFS_VER_REQ=4
 	if type mksquashfs >/dev/null 2>&1; then
@@ -76,7 +80,7 @@
 )
 
 
-if [ -n "$WANT_SQUASHFS" ]; then
+if [ "$WANT_SQUASHFS" -eq 1 ]; then
 	squash_opts="-force-uid 1000 -force-gid 1000 -no-progress -noappend -no-exports -no-recovery"
 	updater=$REPACK/ota/META-INF/com/google/android/updater-script