Revert "cpufreq: interactive: build fixes for 4.4"

This reverts commit bc68f6c4efbd4ddbb15817203f18b7941d9ffd52.

This build fix broke the Interactive Gov at runtime with duplicate sysfs
entry warnings at boot time. We no longer need to this create/destroy
cpufreq sysfs entry at run time on need basis thanks to upstream commit
8eec1020 (cpufreq: create cpu/cpufreq at boot time) which creates it
at boot time. Hence drop this build fix.

Change-Id: I4b6ba122e1c55b74474e92c3a248b1e83f6dc8d1
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>