We do not need libvarnish any more

Since https://github.com/varnishcache/varnish-cache/commit/48d9f8094c9a54f4e41b44abc3931193b9ccdf7b

INSTALL.rst

@@ -108,8 +108,6 @@ Build required components from varnish-cache::
     ./autogen.des && \
     pushd include && \
     make vcs_version.h && \
-    popd && pushd lib/libvarnish && \
-    make libvarnish.la && \
     popd && pushd lib/libvsc &&
     make VSC_main.c \
     )

src/Makefile.am

@@ -210,7 +210,7 @@ noinst_LTLIBRARIES += \
 	libfellowwitness.la
 
 libfellow_libadd = \
-	$(VARNISHSRC)/lib/libvarnish/libvarnish.la $(XXHASH_LIBS)
+	$(VARNISHAPI_LIBS) $(XXHASH_LIBS)
 
 io_ioctl_sources = \
 	fellow_io_ioctl.c \