[tutorials][UHI] Fix rendering of tutorials using non-ROOT graphics

Author: siliataider

tutorials/hist/hist001_TH1_fillrandom_uhi.py

@@ -3,7 +3,6 @@
 ## \notebook
 ## Fill a 1D histogram with random values using predefined functions.
 ##
-## \macro_image
 ## \macro_code
 ##
 ## \date July 2025

tutorials/hist/hist002_TH1_fillrandom_userfunc_uhi.py

@@ -3,7 +3,6 @@
 ## \notebook
 ## Fill a 1D histogram from a user-defined parametric function.
 ##
-## \macro_image
 ## \macro_code
 ##
 ## \date July 2025

tutorials/hist/hist003_TH1_draw_uhi.py

@@ -5,7 +5,6 @@
 ##
 ## \note When using graphics inside a ROOT macro the objects must be created with `new`.
 ##
-## \macro_image
 ## \macro_code
 ##
 ## \date July 2025

tutorials/hist/hist007_TH1_liveupdate_uhi.py

@@ -3,7 +3,6 @@
 ## \notebook -js
 ## Simple example illustrating how to use the C++ interpreter.
 ##
-## \macro_image
 ## \macro_code
 ##
 ## \date July 2025

tutorials/hist/hist010_TH1_two_scales_uhi.py

@@ -5,7 +5,6 @@
 ## with different scales in the "same" pad.
 ## Inspired by work of Rene Brun.
 ##
-## \macro_image
 ## \macro_code
 ##
 ## \date July 2025

tutorials/hist/hist015_TH1_read_and_draw_uhi.py

@@ -3,8 +3,6 @@
 ## \notebook -js
 ## A Simple histogram drawing example.
 ##
-## \macro_image
-## \macro_output
 ## \macro_code
 ##
 ## \date July 2025