colored-boxes.lyx: 2 fixes

lib/examples/colored-boxes.lyx

@@ -1,5 +1,5 @@
 #LyX 2.2 created this file. For more info see http://www.lyx.org/
-\lyxformat 497
+\lyxformat 498
 \begin_document
 \begin_header
 \origin /systemlyxdir/examples/
@@ -827,24 +827,6 @@ segmentation style={}
 .
 \end_layout
 
-\begin_layout Standard
-\begin_inset Note Greyedout
-status open
-
-\begin_layout Plain Layout
-
-\series bold
-Note:
-\series default
- The braces and its content must be inserted as \SpecialChar TeX
- code.
-\end_layout
-
-\end_inset
-
-
-\end_layout
-
 \begin_layout Standard
 To be able to use this option, the option 
 \series bold
@@ -1428,7 +1410,6 @@ thetcbcounter : #1
 \end_layout
 
 \begin_layout Standard
-a
 \begin_inset Flex Custom Color Box 2
 status open