drop struct keyword for non-packed objects

As a style decision, struct is often used with packed structures to
indicate they are used like C-structs.  Cleanup this codebase to not use
the extra struct keyword throughout.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I2f83bb1989e4d1f2f843ba3e45fb82e04f0fa61c
diff --git a/sensors/buildjson.cpp b/sensors/buildjson.cpp
index 2bfc143..c320fe1 100644
--- a/sensors/buildjson.cpp
+++ b/sensors/buildjson.cpp
@@ -99,10 +99,9 @@
 }
 } // namespace conf
 
-std::map<std::string, struct conf::SensorConfig>
-    buildSensorsFromJson(const json& data)
+std::map<std::string, conf::SensorConfig> buildSensorsFromJson(const json& data)
 {
-    std::map<std::string, struct conf::SensorConfig> config;
+    std::map<std::string, conf::SensorConfig> config;
     auto sensors = data["sensors"];
 
     /* TODO: If no sensors, this is invalid, and we should except here or during
@@ -110,7 +109,7 @@
      */
     for (const auto& sensor : sensors)
     {
-        config[sensor["name"]] = sensor.get<struct conf::SensorConfig>();
+        config[sensor["name"]] = sensor.get<conf::SensorConfig>();
     }
 
     return config;