Revert "Dell S6100: Addition of SFP ports (#9820)" (#9872)
Master image build break - changes to reviewed and re-merged with appropriate fix
```
======================================================================
FAIL: test_buffers_dell6100_render_template (tests.test_j2files.TestJ2Files)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/sonic/src/sonic-config-engine/tests/test_j2files.py", line 246, in test_buffers_dell6100_render_template
self._test_buffers_render_template('dell', 'x86_64-dell_s6100_c2538-r0', 'Force10-S6100', 'sample-dell-6100-t0-minigraph.xml', 'buffers.json.j2', 'buffers-dell6100.json')
File "/sonic/src/sonic-config-engine/tests/test_j2files.py", line 243, in _test_buffers_render_template
assert filecmp.cmp(sample_output_file, self.output_file)
AssertionError
```
This reverts commit 533471231a.
3bc5053443