dsp : Remove duplicate symbols

Remove digital-cdc-rsc-mgr file from q6_dlkm

Change-Id: I3ec21772b095a4449d1a6c97e73ffdede1499cb9
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>

dsp/Kbuild

@@ -177,9 +177,6 @@ ifdef CONFIG_DIGITAL_CDC_RSC_MGR
 	SPF_CORE_OBJS += digital-cdc-rsc-mgr.o
 endif
 
-ifdef CONFIG_DIGITAL_CDC_RSC_MGR
-	Q6_OBJS += digital-cdc-rsc-mgr.o
-endif
 
 LINUX_INC +=	-Iinclude/linux