Remove assert-news from pre-commit checks (#56)

The `assert-news` with option `-l` is designed with an assumption that
there will only be one commit per PR, therefore it expects a newsfile
for every commit which is incorrect. A newsfile is expected per PR.
Therefore removing `assert-news` from pre-commit checks.

CI will still run `assert-news` on every PR and will fail if newsfile is
missing in the PR.

Signed-off-by: Devaraj Ranganna <devaraj.ranganna@arm.com>

Author: urutva

.pre-commit-config.yaml

@@ -1,15 +1,5 @@
 - repo: local
   hooks:
-    - id: assertnews
-      name: news file
-      entry: assert-news -l
-      language: python
-      types: [file]
-      require_serial: true
-      verbose: true
-      always_run: true
-      pass_filenames: false
-
     - id: licensing
       name: licensing
       entry: license-files

news/2020070701.bugfix

@@ -0,0 +1 @@
+Remove  from pre-commit checks