Update components.json

Removing dead case study

course/en/components.json

@@ -6504,7 +6504,7 @@
           "alt": "",
           "src": "course/en/assets/4462daa4541eb11f9a09ea005d9f160480451597.jpg"
         },
-        "body": "<p>Open data helps farmers to improve yields and support a growing population without the need to destroy valuable habitats.</p><p>Plantwise are collecting open data to produce valuable information packs for farmers about plant health and threats from diseases.<br /><a href=\"https://www.plantwise.org/\" target=\"_blank\">Take me to Plantwise</a></p><p>CIARD has produced a central repository of more than 1,500 open agricultural research collections worldwide, highlighting new research opportunities.<br /><a href=\"http://www.ciard.net/\" target=\"_blank\">Take me to CIARD</a></p>",
+        "body": "<p>Open data helps farmers to improve yields and support a growing population without the need to destroy valuable habitats.</p><p>Plantwise are collecting open data to produce valuable information packs for farmers about plant health and threats from diseases.<br /><a href=\"https://www.plantwise.org/\" target=\"_blank\">Take me to Plantwise</a></p>",
         "title": "Environment"
       },
       {
@@ -11271,4 +11271,4 @@
     "mobileInstruction": "",
     "instruction": "Click the forward arrow for more."
   }
-]
+]