Removed libquad

[[Imported from SVN: r2043]]

lib/Makefile.am

@@ -14,6 +14,5 @@ libdune_la_LIBADD += ../grid/onedgrid/libonedgrid.la
 if ALU3DGRID
   libdune_la_LIBADD += ../grid/alu3dgrid/libalu3d.la
 endif
-libdune_la_LIBADD += ../quadrature/common/libquad.la
 
 include $(top_srcdir)/am/sourcescheck