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-irlba/package.py

@@ -36,4 +36,4 @@ class RIrlba(RPackage):
 
     version('2.0.0', '557674cf8b68fea5b9f231058c324d26')
 
-    depends_on('r-matrix', type=nolink)
+    depends_on('r-matrix', type=('build', 'run'))