[LyX/master] Do not handle special case where buffer == NULL

[Jean-Marc Lasgouttes]

commit 6687b34c072064950ff52efd79439fa4fc03604f
Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
Date:   Mon Sep 9 15:52:01 2024 +0200

    Do not handle special case where buffer == NULL
    
    If it is so, we have already crashed in isBranchSelected() above.
    
    (and hopefully, buffer_ is never null these days).
    
    Spotted by Coverity scan.
---
 src/insets/InsetBranch.cpp | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/insets/InsetBranch.cpp b/src/insets/InsetBranch.cpp
index a86b934826..16ac8f9237 100644
--- a/src/insets/InsetBranch.cpp
+++ b/src/insets/InsetBranch.cpp
@@ -121,10 +121,6 @@ docstring const InsetBranch::buttonLabel(BufferView const &) const
 	if (decoration() == InsetDecoration::MINIMALISTIC)
 		return symb + inv_symb + params_.branch;
 
-	if (!buffer_) {
-		return symb + inv_symb + _("Branch (undefined): ")
-			+ params_.branch;
-	}
 	bool const has_layout =
 		buffer().params().documentClass().hasInsetLayout(layoutName());
 	if (has_layout) {