[LyX/master] Another unreachable `return' that is not needed

[Jean-Marc Lasgouttes]

commit 4b8e5a9d53b5f48e80eda2502277202ef6ec2348
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Thu Mar 9 15:12:03 2017 +0100

    Another unreachable `return' that is not needed
    
    The compilers we use now do not care, but coverity complains.
---
 src/insets/InsetListingsParams.cpp |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/src/insets/InsetListingsParams.cpp 
b/src/insets/InsetListingsParams.cpp
index f375661..bc1b4ce 100644
--- a/src/insets/InsetListingsParams.cpp
+++ b/src/insets/InsetListingsParams.cpp
@@ -687,9 +687,6 @@ docstring ParValidator::validate(string const & name,
                        return bformat(_("Parameters starting with '%1$s': 
%2$s"),
                                                                
from_utf8(name), from_utf8(matching_names));
        }
-       // this stifles a warning but upsets coverity
-       // coverity[UNREACHABLE]
-       return docstring();
 }