Add wxStyledTextCtrl::AnnotationClearLine().

Simply set NULL annotation text for the given line.

Closes #12960.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72518 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/stc/stc.h

@@ -4495,6 +4495,9 @@ public:
     // Returns the current UseAntiAliasing setting.
     bool GetUseAntiAliasing();
 
+    // Clear annotations from the given line.
+    void AnnotationClearLine(int line);
+
 
 
     // The following methods are nearly equivalent to their similarly named