drm/amd/display: Delete max_clks_by_state from DCE clock manager (v2)

drm/amd/display: Delete max_clks_by_state from DCE clock manager (v2)

It was not used by anything anymore.

Note that the parts of DC that need this information actually
already query it from the pplib and don't use the hardcoded
information from max_clks_by_state.

v2:
- Also delete state_dependent_clocks

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>