support/scripts/graph-depends: cut on host-ccache

When selected, host-ccache is a dependency of almost all packages.
As such, it clutters the dependency graph uselessly.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Reviewed-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/scripts/graph-depends

@@ -115,7 +115,7 @@ def remove_transitive_deps(pkg, deps):
 
 # List of dependencies that all/many packages have, and that we want
 # to trim when generating the dependency graph.
-MANDATORY_DEPS = ['toolchain', 'skeleton', 'host-skeleton', 'host-tar', 'host-gzip']
+MANDATORY_DEPS = ['toolchain', 'skeleton', 'host-skeleton', 'host-tar', 'host-gzip', 'host-ccache']
 
 
 # This function removes the dependency on some 'mandatory' package, like the