.checkpackageignore: stop ignoring ShellCheck issues in google-breakpad

The issues have been fixed by commit
f1089391a83aa63b6977e65970451365f10dc66a ("package/google-breakpad/gen-syms.sh:
fix shellcheck warnings")

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/5815132933

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 9212a719a5c3078048737d56596442e5ac7120a4)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

.checkpackageignore

@@ -515,7 +515,6 @@ package/gob2/0001-dont-include-from-prefix.patch Upstream
 package/gobject-introspection/0001-disable-tests.patch Upstream
 package/gobject-introspection/0002-Add-rpath-links-to-ccompiler.patch Upstream
 package/gobject-introspection/0003-giscanner-ignore-error-return-codes-from-ldd-wrapper.patch Upstream
-package/google-breakpad/gen-syms.sh Shellcheck
 package/gpm/0001-Added-musl-support-to-libgpm-and-the-daemon.patch Upstream
 package/gpm/0002-Install-unversioned-solibrary.patch Upstream
 package/gpm/0003-src-Makefile.in-Really-install-unversioned-solibrary.patch Upstream