Remove phantasm for now

Its build is badly broken

Change-Id: I56a5bc5bf8a26ef9bc42f39cfe3bb9e0eb54777a
diff --git a/generate-blob-lists.sh b/generate-blob-lists.sh
index 206e012..04a939b 100755
--- a/generate-blob-lists.sh
+++ b/generate-blob-lists.sh
@@ -42,7 +42,7 @@
 fi
 shift
 
-DEVICES="maguro toro toroplus grouper manta mako phantasm"
+DEVICES="maguro toro toroplus grouper manta mako"
 export LC_ALL=C
 
 repo sync -j32 -n