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

src/stc/stc.cpp

@@ -4444,6 +4444,9 @@ bool wxStyledTextCtrl::GetUseAntiAliasing() {
     return m_swx->GetUseAntiAliasing();
 }
 
+void wxStyledTextCtrl::AnnotationClearLine(int line) {
+    SendMsg(SCI_ANNOTATIONSETTEXT, line, NULL);
+}