Remove duplicate external reference with malformed URL

Author: halcyon

enterprise-attack/enterprise-attack-11.2.json

@@ -134340,11 +134340,6 @@
                     "url": "https://dragos.com/resource/xenotime/",
                     "description": "Dragos, Inc.. (n.d.). Xenotime. Retrieved April 16, 2019."
                 },
-                {
-                    "source_name": "FireEye TEMP.Veles 2018",
-                    "url": "https://www.fireeye.com/blog/threat-research/2018/10/triton-attribution-russian-government-owned-lab-most-likely-built-tools.html ",
-                    "description": "FireEye Intelligence . (2018, October 23). TRITON Attribution: Russian Government-Owned Lab Most Likely Built Custom Intrusion Tools for TRITON Attackers. Retrieved April 16, 2019."
-                },
                 {
                     "source_name": "FireEye TEMP.Veles 2018 ",
                     "url": "https://www.fireeye.com/blog/threat-research/2018/10/triton-attribution-russian-government-owned-lab-most-likely-built-tools.html",

enterprise-attack/enterprise-attack.json

@@ -134340,11 +134340,6 @@
                     "url": "https://dragos.com/resource/xenotime/",
                     "description": "Dragos, Inc.. (n.d.). Xenotime. Retrieved April 16, 2019."
                 },
-                {
-                    "source_name": "FireEye TEMP.Veles 2018",
-                    "url": "https://www.fireeye.com/blog/threat-research/2018/10/triton-attribution-russian-government-owned-lab-most-likely-built-tools.html ",
-                    "description": "FireEye Intelligence . (2018, October 23). TRITON Attribution: Russian Government-Owned Lab Most Likely Built Custom Intrusion Tools for TRITON Attackers. Retrieved April 16, 2019."
-                },
                 {
                     "source_name": "FireEye TEMP.Veles 2018 ",
                     "url": "https://www.fireeye.com/blog/threat-research/2018/10/triton-attribution-russian-government-owned-lab-most-likely-built-tools.html",