drm/bridge: tc358762: drop connector field

The tc358762.connector field is unused. Remove it to save space.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220426011359.2861224-1-dmitry.baryshkov@linaro.org