Remove enum specifier (to avoid re-declare scoped enum as unscoped)

src/rest.cpp

@@ -33,7 +33,7 @@ enum class RetFormat {
 };
 
 static const struct {
-    enum RetFormat rf;
+    RetFormat rf;
     const char* name;
 } rf_names[] = {
       {RetFormat::UNDEF, ""},
@@ -68,7 +68,7 @@ static bool RESTERR(HTTPRequest* req, enum HTTPStatusCode status, std::string me
     return false;
 }
 
-static enum RetFormat ParseDataFormat(std::string& param, const std::string& strReq)
+static RetFormat ParseDataFormat(std::string& param, const std::string& strReq)
 {
     const std::string::size_type pos = strReq.rfind('.');
     if (pos == std::string::npos)