From 5b108bc88bb5eb53a93e04613d56eade3f2c3970 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Mon, 22 Nov 2021 16:11:17 -0800
Subject: [PATCH] COMPAT: Fix the last warning from matplotlib 3.5.0 (#44544)

---
 pandas/plotting/_matplotlib/core.py | 1 -
 pandas/tests/plotting/common.py     | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/pandas/plotting/_matplotlib/core.py b/pandas/plotting/_matplotlib/core.py
index 08dc9538227f7..ba47391513ed2 100644
--- a/pandas/plotting/_matplotlib/core.py
+++ b/pandas/plotting/_matplotlib/core.py
@@ -1036,7 +1036,6 @@ def _plot_colorbar(self, ax: Axes, **kwds):
         # use the last one which contains the latest information
         # about the ax
         img = ax.collections[-1]
-        ax.grid(False)
         cbar = self.fig.colorbar(img, ax=ax, **kwds)
 
         if mpl_ge_3_0_0():
diff --git a/pandas/tests/plotting/common.py b/pandas/tests/plotting/common.py
index 52127b926f1fa..ae9db5e728efe 100644
--- a/pandas/tests/plotting/common.py
+++ b/pandas/tests/plotting/common.py
@@ -552,7 +552,7 @@ def is_grid_on():
             obj.plot(kind=kind, grid=False, **kws)
             assert not is_grid_on()
 
-            if kind != "pie":
+            if kind not in ["pie", "hexbin", "scatter"]:
                 self.plt.subplot(1, 4 * len(kinds), spndx)
                 spndx += 1
                 mpl.rc("axes", grid=True)