Remove no longer used minimal-predeployed-1503-target-tpl.json.

This was relevant in 15.03, but no longer is.

Signed-off-by: Andrew Shadura <andrew.shadura@collabora.co.uk>
Reviewed-by: Luis Araujo <luis.araujo@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D7199

templates/minimal-predeployed-1503-target-tpl.json

-{
-  "job_name": "Predeployed boot test on {{release_version}} {{pretty}}",
-  "device_type": "{{device_type}}",
-  "timeout": 3600,
-  "tags": [
-    "predeployed_sac_1503_target"
-  ],
-  "actions": [
-    {
-      "command": "deploy_kernel",
-      "parameters" : {
-        "kernel": "https://lava.collabora.co.uk/static/lava-server/images/collabora-logo.png",
-        "target_type": "ubuntu"
-      }
-    },
-    {
-      "command": "boot_image",
-      "parameters": { "options": ["boot_cmds=boot_cmds_sac_1503_target"] }
-    },
-    {
-      "command": "lava_test_shell",
-      "parameters": {
-        "timeout": 1000,
-        "testdef_repos": [
-          {
-            "git-repo": "https://git.apertis.org/git/apertis-tests.git",
-            "revision": "master",
-            "testdef": "common/sanity-check.yaml"
-          },
-          {
-            "git-repo": "https://git.apertis.org/git/apertis-tests.git",
-            "revision": "master",
-            "testdef": "misc/add-repo.yaml"
-          }
-        ]
-      }
-    },
-    {
-      "command": "submit_results",
-      "parameters": {
-        "stream": "{{bundle_stream}}",
-        "server": "https://lava.collabora.co.uk/RPC2/"
-      }
-    }
-  ]
-}