package_index: remove dfu-util from template

The tool is already available in mainline package_index.json

Author: facchinm

package/package_esp32_index.template.json

@@ -691,66 +691,6 @@
           ]
         }
       ]
-    },
-    {
-      "name": "arduino",
-      "maintainer": "Arduino",
-      "websiteURL": "http://www.arduino.cc/",
-      "email": "[email protected]",
-      "help": {
-        "online": "http://www.arduino.cc/en/Reference/HomePage"
-      },
-      "platforms": [],
-      "tools": [
-        {
-          "name": "dfu-util",
-          "version": "0.11.0-arduino5",
-          "systems": [
-            {
-              "host": "i386-apple-darwin",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-darwin_amd64.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-darwin_amd64.tar.gz",
-              "size": "72429",
-              "checksum": "SHA-256:9e576c6e44f54b1e921a43ea77bcc08ec99e0e4e0905f4b9acf9ab2c979f0a22"
-            },
-            {
-              "host": "arm-linux-gnueabihf",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-linux_arm.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-linux_arm.tar.gz",
-              "size": "2512819",
-              "checksum": "SHA-256:acd4bd283fd408515279a44dd830499ad37b0767e8f2fde5c27e878ded909dc3"
-            },
-            {
-              "host": "aarch64-linux-gnu",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-linux_arm64.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-linux_arm64.tar.gz",
-              "size": "2607592",
-              "checksum": "SHA-256:b3f46a65da0c2fed2449dc5a3351c3c74953a868aa7f8d99ba2bb8c418344fe9"
-            },
-            {
-              "host": "x86_64-linux-gnu",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-linux_amd64.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-linux_amd64.tar.gz",
-              "size": "2283425",
-              "checksum": "SHA-256:96c64c278561af806b585c123c85748926ad02b1aedc07e5578ca9bee2be0d2a"
-            },
-            {
-              "host": "i686-linux-gnu",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-linux_386.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-linux_386.tar.gz",
-              "size": "2524406",
-              "checksum": "SHA-256:9a707692261e5710ed79a6d8a4031ffd0bfe1e585216569934346e9b2d68d0c2"
-            },
-            {
-              "host": "i686-mingw32",
-              "url": "http://downloads.arduino.cc/tools/dfu-util-0.11-arduino5-windows_386.tar.gz",
-              "archiveFileName": "dfu-util-0.11-arduino5-windows_386.tar.gz",
-              "size": "571340",
-              "checksum": "SHA-256:6451e16bf77600fe2436c8708ab4b75077c49997cf8bedf03221d9d6726bb641"
-            }
-          ]
-        }
-      ]
     }
   ]
 }