Remove inline keyword from dump_t member function declaration

This is completly redundant:
[class.mfct]: "A member function may be defined (9.5) in its class
definition, in which case it is an inline (9.2.7) member
function if it is attached to the global module"

common/actions.h

@@ -22,13 +22,13 @@ class dump_t
 	        dump_tag(std::move(dump_tag))
 	{}
 
-	inline bool operator==(const dump_t& o) const
+	bool operator==(const dump_t& o) const
 	{
 		return std::tie(dump_id, dump_tag) ==
 		       std::tie(o.dump_id, o.dump_tag);
 	}
 
-	inline bool operator!=(const dump_t& o) const
+	bool operator!=(const dump_t& o) const
 	{
 		return !operator==(o);
 	}