docs: Remove extra include.

`rst_include` tool seems to handle recursive includes correctly now.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>

README.src.rst

diff --git a/README.src.rst b/README.src.rst
index 64ee4b1..fb600e3 100644
--- a/README.src.rst
+++ b/README.src.rst
@@ -33,7 +33,6 @@
    :target: https://github.com/google/skywater-pdk
    :width: 80%
 
-.. include:: docs/common.inc
 .. include:: docs/status.rst
 
 See both the :ref:`Known Issues` section and the `SkyWater PDK GitHub issue list <https://github.com/google/skywater-pdk/issues>`_ to get more detailed information around currently known issues.