[LyX/master] Fix MathML output of InsetMathDelim

[Thibaut Cuvelier]

commit 372b32c0a679c39ba968b8632c9413e5fd3f12d5
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Sun Dec 20 00:20:52 2020 +0100

    Fix MathML output of InsetMathDelim
    
    Patch by lynx (https://www.lyx.org/trac/ticket/12050).
---
 src/mathed/InsetMathDelim.cpp |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/src/mathed/InsetMathDelim.cpp b/src/mathed/InsetMathDelim.cpp
index 2b27960..11a47d1 100644
--- a/src/mathed/InsetMathDelim.cpp
+++ b/src/mathed/InsetMathDelim.cpp
@@ -182,17 +182,13 @@ void InsetMathDelim::mathematica(MathematicaStream & os) const
 void InsetMathDelim::mathmlize(MathStream & ms) const
 {
 	ms << "<" << from_ascii(ms.namespacedTag("mo")) << " form='prefix' fence='true' stretchy='true' symmetric='true'>"
-	   << "<" << from_ascii(ms.namespacedTag("mrow")) << ">"
 	   << convertDelimToXMLEscape(left_, ms.xmlMode())
-	   << "</" << from_ascii(ms.namespacedTag("mrow")) << ">"
 	   << "</" << from_ascii(ms.namespacedTag("mo")) << ">"
 	   << "\n"
 	   << cell(0)
 	   << "\n"
 	   << "<" << from_ascii(ms.namespacedTag("mo")) << " form='postfix' fence='true' stretchy='true' symmetric='true'>"
-	   << "<" << from_ascii(ms.namespacedTag("mrow")) << ">"
 	   << convertDelimToXMLEscape(right_, ms.xmlMode())
-	   << "</" << from_ascii(ms.namespacedTag("mrow")) << ">"
 	   << "</" << from_ascii(ms.namespacedTag("mo")) << ">"
 	   << "\n";
 }