T6199: remove unused Python imports from migration scripts

(cherry picked from commit 489e6fababa60d9c0fbfdb421305cbe563432499)

# Conflicts:
#	src/migration-scripts/dhcp-server/9-to-10
#	src/migration-scripts/dhcpv6-server/3-to-4

7 files changed, 5 insertions, 25 deletions

diff --git a/src/migration-scripts/l2tp/2-to-3 b/src/migration-scripts/l2tp/2-to-3
index b46b0f22e..8527c2d4a 100755
--- a/src/migration-scripts/l2tp/2-to-3
+++ b/src/migration-scripts/l2tp/2-to-3
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2020 VyOS maintainers and contributors
+# Copyright (C) 2020-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -17,9 +17,6 @@
 # - remove primary/secondary identifier from nameserver
 # - TODO: remove radius server req-limit
 
-import os
-import sys
-
 from sys import argv, exit
 from vyos.configtree import ConfigTree
 
@@ -38,7 +35,6 @@ if not config.exists(base):
     # Nothing to do
     exit(0)
 else:
-
     # Migrate IPv4 DNS servers
     dns_base = base + ['dns-servers']
     if config.exists(dns_base):
diff --git a/src/migration-scripts/l2tp/3-to-4 b/src/migration-scripts/l2tp/3-to-4
index 8c2b909b7..14b86ff04 100755
--- a/src/migration-scripts/l2tp/3-to-4
+++ b/src/migration-scripts/l2tp/3-to-4
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2021-2023 VyOS maintainers and contributors
+# Copyright (C) 2021-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -23,7 +23,6 @@ from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
 from vyos.pki import load_certificate
-from vyos.pki import load_crl
 from vyos.pki import load_private_key
 from vyos.pki import encode_certificate
 from vyos.pki import encode_private_key
diff --git a/src/migration-scripts/l2tp/4-to-5 b/src/migration-scripts/l2tp/4-to-5
index 3176f895a..b7f4d2677 100755
--- a/src/migration-scripts/l2tp/4-to-5
+++ b/src/migration-scripts/l2tp/4-to-5
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2023 VyOS maintainers and contributors
+# Copyright (C) 2023-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -19,8 +19,6 @@
 #       'subnet' migrate to namedpool 'default-subnet-pool'
 #       'default-subnet-pool' is the next pool for 'default-range-pool'
 
-import os
-
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
diff --git a/src/migration-scripts/l2tp/5-to-6 b/src/migration-scripts/l2tp/5-to-6
index ca0b13dcc..ac40b89c8 100755
--- a/src/migration-scripts/l2tp/5-to-6
+++ b/src/migration-scripts/l2tp/5-to-6
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2023 VyOS maintainers and contributors
+# Copyright (C) 2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -14,14 +14,10 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-
-import os
-
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
 
-
 if len(argv) < 2:
     print("Must specify file name!")
     exit(1)
diff --git a/src/migration-scripts/l2tp/6-to-7 b/src/migration-scripts/l2tp/6-to-7
index f49c4ab08..1c536585c 100755
--- a/src/migration-scripts/l2tp/6-to-7
+++ b/src/migration-scripts/l2tp/6-to-7
@@ -16,13 +16,10 @@
 
 # Migrating to named ipv6 pools
 
-import os
-
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
 
-
 if len(argv) < 2:
     print("Must specify file name!")
     exit(1)
diff --git a/src/migration-scripts/l2tp/7-to-8 b/src/migration-scripts/l2tp/7-to-8
index 4956e1155..e429ed057 100755
--- a/src/migration-scripts/l2tp/7-to-8
+++ b/src/migration-scripts/l2tp/7-to-8
@@ -17,13 +17,10 @@
 # Migrate from 'ccp-disable' to 'ppp-options.disable-ccp'
 # Migration ipv6 options
 
-import os
-
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
 
-
 if len(argv) < 2:
     print("Must specify file name!")
     exit(1)
diff --git a/src/migration-scripts/l2tp/8-to-9 b/src/migration-scripts/l2tp/8-to-9
index e85a3892b..672180e25 100755
--- a/src/migration-scripts/l2tp/8-to-9
+++ b/src/migration-scripts/l2tp/8-to-9
@@ -16,13 +16,10 @@
 
 # Deleted 'dhcp-interface' from l2tp
 
-import os
-
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
 
-
 if len(argv) < 2:
     print("Must specify file name!")
     exit(1)
@@ -37,7 +34,7 @@ base = ['vpn', 'l2tp', 'remote-access']
 if not config.exists(base):
     exit(0)
 
-#deleting unused dhcp-interface
+# deleting unused dhcp-interface
 if config.exists(base + ['dhcp-interface']):
     config.delete(base + ['dhcp-interface'])