Removing CVE-2020-7473

I will try to find a more stable syntax and will add it again.

cves/CVE-2020-7473.yaml

@@ -1,19 +0,0 @@
-id: CVE-2020-7473
-
-info:
-  name: Citrix ShareFile unauthenticated attacker to compromise the storage zones controller
-  author: JTeles
-  severity: high
-  # CVE auth: DIMITRI
-  # Github: https://github.com/DimitriNL/CTX-CVE-2020-7473
-
-requests:
-  - method: GET
-    path:
-      - "{{BaseURL}}/UploadTest.aspx"
-    redirects: true
-    max-redirects: 3
-    matchers:
-      - type: dsl
-        dsl:
-          - "len(body)==0 && status_code<=309"