[plugins] Made dbuslog an external plugin. JB#51793

If the platform doesn't want to provide a way to configure and
pull nfcd logs at runtime, it's now as simple as not installing
nfcd-dbuslog-plugin package.

This also eliminates direct dependency on libdbuslogserver-gio
package. It's only required by the logging plugin, which makes
perfect sense.

plugins/Makefile

@@ -231,40 +231,6 @@ $(RELEASE_DBUS_HANDLERS_BUILD_DIR):
 $(COVERAGE_DBUS_HANDLERS_BUILD_DIR):
 	mkdir -p $@
 
-#
-# D-Bus log plugin
-#
-
-PKGS += libdbuslogserver-gio
-
-DBUS_LOG_DIR = dbus_log
-DBUS_LOG_SRC = dbus_log_plugin.c
-
-DEBUG_DBUS_LOG_BUILD_DIR = $(DEBUG_BUILD_DIR)/$(DBUS_LOG_DIR)
-RELEASE_DBUS_LOG_BUILD_DIR = $(RELEASE_BUILD_DIR)/$(DBUS_LOG_DIR)
-COVERAGE_DBUS_LOG_BUILD_DIR = $(COVERAGE_BUILD_DIR)/$(DBUS_LOG_DIR)
-
-DEBUG_DBUS_LOG_OBJS = $(DBUS_LOG_SRC:%.c=$(DEBUG_DBUS_LOG_BUILD_DIR)/%.o)
-RELEASE_DBUS_LOG_OBJS = $(DBUS_LOG_SRC:%.c=$(RELEASE_DBUS_LOG_BUILD_DIR)/%.o)
-COVERAGE_DBUS_LOG_OBJS = $(DBUS_LOG_SRC:%.c=$(COVERAGE_DBUS_LOG_BUILD_DIR)/%.o)
-
-DEBUG_OBJS += $(DEBUG_DBUS_LOG_OBJS)
-RELEASE_OBJS += $(RELEASE_DBUS_LOG_OBJS)
-COVERAGE_OBJS += $(COVERAGE_DBUS_LOG_OBJS)
-
-$(DEBUG_DBUS_LOG_OBJS): | $(DEBUG_DBUS_LOG_BUILD_DIR)
-$(RELEASE_DBUS_LOG_OBJS): | $(RELEASE_DBUS_LOG_BUILD_DIR)
-$(COVERAGE_DBUS_LOG_OBJS): | $(COVERAGE_DBUS_LOG_BUILD_DIR)
-
-$(DEBUG_DBUS_LOG_BUILD_DIR):
-	mkdir -p $@
-
-$(RELEASE_DBUS_LOG_BUILD_DIR):
-	mkdir -p $@
-
-$(COVERAGE_DBUS_LOG_BUILD_DIR):
-	mkdir -p $@
-
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