fans: Remove presence-example recipe

Replace the fan-presence example recipe with a re-usable
"hardcoded" config recipe.

Change-Id: I47fba19eb9243d123a44e448ebf4322593074e1c
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/conf/distro/include/phosphor-defaults.inc b/conf/distro/include/phosphor-defaults.inc
index 5a17df6..543413c 100644
--- a/conf/distro/include/phosphor-defaults.inc
+++ b/conf/distro/include/phosphor-defaults.inc
@@ -191,7 +191,7 @@
 # configuration files in the format and native sysroot location expected by
 # the phosphor-fan-presence build process in the native sysroot.
 PREFERRED_PROVIDER_virtual/phosphor-fan-presence-config ?= \
-    "${@cf_enabled(d, 'obmc-mrw', 'phosphor-fan-presence-mrw-native', 'phosphor-fan-presence-example-native')}"
+    "${@cf_enabled(d, 'obmc-mrw', 'phosphor-fan-presence-mrw-native', 'phosphor-fan-presence-config-native')}"
 
 # The phosphor-fan-control application is data driven and requires a YAML
 # file to define the fans in the system.