How to reduce the gap between a figure and enumerate environment

Question

I'd like to reduce the blank space between a figure that I generate via tikz and enumaration environment.

\documentclass{article}
\usepackage{tikz}
\usepackage{enumitem}[nosep]
\newcommand{\zerodisplayskips}{%
  \setlength{\abovedisplayskip}{0pt}%
  \setlength{\belowdisplayskip}{0pt}%
  \setlength{\abovedisplayshortskip}{0pt}%
  \setlength{\belowdisplayshortskip}{0pt}}
  \setlength\parindent{0pt}
\begin{document}

\begin{figure}[!h]
     \begin{tikzpicture}[
       thick,acteur/.style={ circle,fill=black,thick,inner sep=1pt,minimum size=0.3cm
       },font = \scriptsize
     ]
        \node (0) at (0,0) [acteur]{};
        \node (1) at (1,-2) [acteur]{};
        \node (2) at (2,0) [acteur]{};
         \foreach \from/\to in {0/1, 0/2, 1/2} \draw[thick](\from) -- (\to); 
    \end{tikzpicture}
\end{figure}
\begin{enumerate}
    \item A
    \item B
\end{enumerate}
\end{document}

I have updated all displayskips, however, there seems like a redundant space. In the original document, it looks quite bizarre.

Answer 1

The displayskips are for display math so have would no effect here even if you ran the \zerodisplayskips command (which this example does not do). the enumerate is in the main document flow but you have specified that the tikz is in a float so is taken out of the flow and is an insert that may be inserted to help with page breaking, so there isn't really a definite space between these things.

A float which is positioned by h will have \intextsep spacing added above and below so you could reduce that, however if you always want the tikz to be above the enumerate then you should not float it, and simply remove the figure environment.