tests/acceptance/linux_ssh_mips_malta.py: drop identical setUp

These tests' setUp do not do anything beyong what their base class do.
And while they do decorate the setUp() we can decorate the classes
instead, so no functionality is lost here.

This is possible because since Avocado 76.0 we can decorate setUp()
directly.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210415215141.1865467-4-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
[PMD: added note to commit message about Avocado feature/version]
Signed-off-by: Cleber Rosa <crosa@redhat.com>

tests/acceptance/linux_ssh_mips_malta.py

@@ -19,6 +19,8 @@
 from avocado.utils import ssh
 
 
+@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
+@skipUnless(ssh.SSH_CLIENT_BINARY, 'No SSH client available')
 class LinuxSSH(Test, LinuxSSHMixIn):
 
     timeout = 150 # Not for 'configure --enable-debug --enable-debug-tcg'
@@ -65,11 +67,6 @@ def get_kernel_info(self, endianess, wordsize):
         kernel_hash = self.IMAGE_INFO[endianess]['kernel_hash'][wordsize]
         return kernel_url, kernel_hash
 
-    @skipUnless(ssh.SSH_CLIENT_BINARY, 'No SSH client available')
-    @skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
-    def setUp(self):
-        super(LinuxSSH, self).setUp()
-
     def ssh_disconnect_vm(self):
         self.ssh_session.quit()