treewide: remove dependencies on mapper.target

The mapper is dbus activated now, so these explicit dependency
declarations are unnecessary and redundant.

Change-Id: I8f8382de95638680df43b6f18f926556cd03e4a6
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/services/phosphor-regulators.service b/services/phosphor-regulators.service
index f089df9..99c56de 100644
--- a/services/phosphor-regulators.service
+++ b/services/phosphor-regulators.service
@@ -1,7 +1,5 @@
 [Unit]
 Description=Phosphor Power Regulators Daemon
-Wants=obmc-mapper.target
-After=obmc-mapper.target
 
 [Service]
 Type=dbus