Snap for 5558509 from deb6fe6a49447abe1ef1f3dc4c0120f68d2cecb8 to qt-release

Change-Id: Ie72de57e78c962bef573abd8d2114ff78b8fc992
diff --git a/uml.mk b/uml.mk
index 659242d..03db5e9 100644
--- a/uml.mk
+++ b/uml.mk
@@ -71,7 +71,6 @@
     libm \
     libpixelflinger \
     libpower \
-    libsigchain \
     libstdc++ \
     libsurfaceflinger \
     libsysutils \