[action] [PR:21958] Do not exclude dynamic buffer model when generating buffer queue table in SN5600 (sonic-net#973)

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#### Why I did it

Support dynamic buffer model in 5600

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Author: mssonicbld

device/mellanox/x86_64-nvidia_sn5600-r0/Mellanox-SN5600-C256S1/buffers_defaults_objects.j2

@@ -148,7 +148,6 @@
 
 {%- macro generate_queue_buffers(port_names_active, port_names_inactive) %}
     "BUFFER_QUEUE": {
-{% if dynamic_mode is not defined %}
 {% for port in port_names_active.split(',') %}
         "{{ port }}|0": {
             "profile" : "q_lossy_profile"
@@ -183,7 +182,6 @@
         }{% if not loop.last %},{% endif %}
 
 {% endfor %}
-{% endif %}
 {% endif %}
     }
 {%- endmacro %}