clk: qcom: Remove references for the debug clocks on SDM845

The debug_clk clocks are only needed while measuring the controllers
clocks. The support for toggling those registers already exists in
the debug mux structures. Remove all debug clock structures so that
no client erroneously tries to manage it.

Change-Id: I0a3cebc067acbd9ce57f9df23c7591218add90f8
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>