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-e1071/package.py

@@ -36,4 +36,4 @@ class RE1071(RPackage):
 
     version('1.6-7', 'd109a7e3dd0c905d420e327a9a921f5a')
 
-    depends_on('r-class', type=nolink)
+    depends_on('r-class', type=('build', 'run'))