[swss/syncd]: Remove dependency on interfaces-config.service (#17649)

Signed-off-by: Nazarii Hnydyn nazariig@nvidia.com

This improvement does not bring any warm-reboot degradation, since the database availability (tcp/ip access over the loopback interface) was fixed by these PRs:

Re-add 127.0.0.1/8 when bringing down the interfaces #15080
Fix potentially not having any loopback address on lo interface #16490
Why I did it
Removed dependency on interfaces-config.service to speed up the boot, because interfaces-config.service takes a lot of time on init
Work item tracking
N/A
How I did it
Changed service files for swss/syncd
How to verify it
Boot and check swss/syncd start time comparing to interfaces-config

files/build_templates/per_namespace/swss.service.j2

@@ -11,7 +11,6 @@ Requires=opennsl-modules.service
 {% endif %}
 Requires=updategraph.service
 After=updategraph.service
-After=interfaces-config.service
 BindsTo=sonic.target
 After=sonic.target
 Before=ntp-config.service

files/build_templates/per_namespace/syncd.service.j2

@@ -16,7 +16,6 @@ After=nps-modules.service
 {% endif %}
 Requires=updategraph.service
 After=updategraph.service
-After=interfaces-config.service
 BindsTo=sonic.target
 After=sonic.target
 Before=ntp-config.service