[gimp] plug-ins: remove unneeded and uninitialized base_channels.

[Jacob Boerema <jboerema src gnome org>]

commit 18e835e9f6398d7084a1bd9892202731129439ed
Author: Jacob Boerema <jgboerema gmail com>
Date:   Wed Nov 10 22:47:08 2021 -0500

    plug-ins: remove unneeded and uninitialized base_channels.

 plug-ins/file-psd/psd-load.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/plug-ins/file-psd/psd-load.c b/plug-ins/file-psd/psd-load.c
index 457913cc8c..7e26f96d87 100644
--- a/plug-ins/file-psd/psd-load.c
+++ b/plug-ins/file-psd/psd-load.c
@@ -2255,7 +2255,6 @@ add_merged_image (GimpImage     *image,
           if (! g_strcmp0 (alpha_name, "Transparency"))
             {
               alpha_channel = TRUE;
-              base_channels += 1;
               extra_channels--;
               IFDBG(3) g_debug ("Merged image alpha channel present.");
             }