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

[Jean-Marc Lasgouttes]

commit c6213b1b20f93172e983734359b5b96dcaa02ce0
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Tue Mar 14 14:46:02 2017 +0100

    Another forgotten 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 bc1b4ce..4b90ce7 100644
--- a/src/insets/InsetListingsParams.cpp
+++ b/src/insets/InsetListingsParams.cpp
@@ -223,9 +223,6 @@ docstring ListingsParam::validate(string const & par) const
                        return bformat(_("Try one of %1$s."), from_utf8(info_));
                else
                        return bformat(_("I guess you mean %1$s."), 
from_utf8(matching_names));
-               // this stifles a warning but upsets coverity
-               // coverity[UNREACHABLE]
-               return docstring();
        }
        case SUBSETOF:
                if (par2.empty() && !onoff_) {