netipmid: Remove local timer class

Remove the local timer class, migrating to the sdbusplus/timer.hpp class
for now. As the project moves toward the single ipmi execution queue the
timers will all go away anyway in preference to the asio timers.

Tested-by: making changes to the network via rmcp+ with ipmitool. This
           should make use of the networkTimer variable that was
	   changed from the internal timer class to the sdbusplus timer
	   class.

Change-Id: I4a86e3b9c1f3cfefee1e112229dcb63aa5119f2f
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/Makefile.am b/Makefile.am
index fb419df..d1a6ec7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -54,8 +54,7 @@
 	sol_module.hpp \
 	sol_module.cpp \
 	settings.hpp \
-	settings.cpp \
-	timer.cpp
+	settings.cpp
 
 netipmid_CPPFLAGS = -DNET_IPMID_LIB_PATH=\"/usr/lib/net-ipmid/\"