doc: doxyfile: remove redundant predefinitions

PM related pre-definitions are not required, so remove them.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
diff --git a/doc/zephyr.doxyfile.in b/doc/zephyr.doxyfile.in
index f47cdbb..64f071b 100644
--- a/doc/zephyr.doxyfile.in
+++ b/doc/zephyr.doxyfile.in
@@ -2273,9 +2273,6 @@
                          CONFIG_NET_MGMT_EVENT \
                          CONFIG_NET_TCP \
                          CONFIG_NET_UDP \
-                         CONFIG_PM \
-                         CONFIG_PM_DEVICE \
-                         CONFIG_PM_DEVICE_RUNTIME \
                          CONFIG_PWM_CAPTURE \
                          CONFIG_SCHED_CPU_MASK \
                          CONFIG_SCHED_DEADLINE \