Get Rid of nobuild, nolink, and alldeps (#2765)

* Removing the nobuild, nolink, and alldeps dependency types in favor of being explicit.
* This will help with maintenance going forward, as adding more dependency types won't affect existing declared dependencies in weird ways.
* default deptype is still `('build', 'link')`

var/spack/repos/builtin/packages/r-pbdzmq/package.py

@@ -41,5 +41,5 @@ class RPbdzmq(RPackage):
 
     version('0.2-4', 'e5afb70199aa54d737ee7a0e26bde060')
 
-    depends_on('r-r6', type=nolink)
+    depends_on('r-r6', type=('build', 'run'))
     depends_on('zeromq')