[LyX/master] Remove obsolete \cprotect'ion (#6243)

[Juergen Spitzmueller]

commit 3e4c831f1ee4a0424151e0bfaa73bfa0a02f85d9
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Mon Dec 27 10:24:58 2021 +0100

    Remove obsolete \cprotect'ion (#6243)
---
 src/Paragraph.cpp |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index a33d6d6..f09143a 100644
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -4125,7 +4125,6 @@ bool Paragraph::needsCProtection(bool const fragile) const
 		if (!im || im->cell(0).empty())
 			continue;
 		switch(im->cell(0)[0]->lyxCode()) {
-		case MATH_AMSARRAY_CODE:
 		case MATH_SUBSTACK_CODE:
 		case MATH_ENV_CODE:
 		case MATH_XYMATRIX_CODE: