Remove all VNC install needles

We removed the VNC test as anaconda doesn't support VNC any more.
This all needs porting to RDP, any of these needles that might be
useful can come back as part of that work.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/anaconda/vnc/vinagre_enable_shortcuts-20210506.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 605,
-      "ypos": 213,
-      "width": 116,
-      "height": 16,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_enable_shortcuts"
-  ]
-}

needles/anaconda/vnc/vinagre_fullscreen-20220525.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "type": "match",
-      "ypos": 172,
-      "width": 26,
-      "height": 25,
-      "xpos": 371
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_fullscreen"
-  ]
-}

needles/anaconda/vnc/vinagre_fullscreen-20240606.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "height": 25,
-      "ypos": 171,
-      "type": "match",
-      "width": 26,
-      "xpos": 371
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_fullscreen"
-  ]
-}

needles/anaconda/vnc/vinagre_new_connection-20210506.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 195,
-      "ypos": 170,
-      "width": 32,
-      "height": 26,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_new_connection"
-  ]
-}

needles/anaconda/vnc/vinagre_protocol-20210506.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 441,
-      "ypos": 289,
-      "width": 30,
-      "height": 12,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_protocol"
-  ]
-}

needles/anaconda/vnc/vinagre_protocol_vnc-20210506.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 405,
-      "ypos": 383,
-      "width": 32,
-      "height": 16,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "vinagre_protocol_vnc"
-  ]
-}