Remove docutils dependency from example roles, since it is not essential for the examples to be built.

Author: mvousden

roles/magpar_examples/meta/main.yml

@@ -1,4 +1,3 @@
 ---
 dependencies:
-  - { role: docutils }
   - { role: magpar }

roles/nmag_examples/meta/main.yml

@@ -1,4 +1,3 @@
 ---
 dependencies:
-  - { role: docutils }
   - { role: nmag }

roles/oommf_examples/meta/main.yml

@@ -1,4 +1,3 @@
 ---
 dependencies:
-  - { role: docutils }
   - { role: oommf }