Don't unify color defs

They either need to be outside the animation, or duplicated across frames, it seems.

Author: JasonGross

src/tikzplotlib/_save.py

@@ -227,7 +227,6 @@ def get_figure_tikz_code(
         figure,
         wrap: bool = wrap,
         include_disclaimer: bool = include_disclaimer,
-        include_colordefs: bool = True,
     ):
         # gather the file content
         data, content = _recurse(data, figure)
@@ -281,7 +280,6 @@ def get_figure_tikz_code(
                 figure._fig,
                 wrap=True,
                 include_disclaimer=False,
-                include_colordefs=False,
             )
             frames.append(f"% Frame {frame + 1}\n{code}\n")
 
@@ -300,10 +298,6 @@ def get_figure_tikz_code(
             code += "\n"
             code += "\n"
 
-        coldefs = _get_color_definitions(data)
-        if coldefs:
-            code += "\n".join(coldefs) + "\n\n"
-
         code += "\n\\newframe\n".join(frames)
 
         if wrap: