Revert "New sources added"

+ Bitcrusher (Icon)
+ Bitcrusher DLC (Icon)
+ Digitizer (Icon)
+ Gorod Discrography
+ ΩHM
+ Venerabela
+ Venera Hero 1
+ Venera Hero 2
+ Venera Hero 3

extra/index.json

@@ -174,15 +174,15 @@
 			"names": {
 				"en-US": "BITCRUSHER"
 			},
-			"icon": "bitcrusher",
+			"icon": "generic",
 			"type": "custom"
 		},
 		{ 
 			"ids": [ "bitcrusherdlc" ],
 			"names": {
 				"en-US": "BITCRUSHER DLC"
 			},
-			"icon": "bitcrusherdlc",
+			"icon": "generic",
 			"type": "custom"
 		},
 		{ 
@@ -422,7 +422,7 @@
 			"names": {
 				"en-US": "Digitizer"
 			},
-			"icon": "digitizer",
+			"icon": "generic",
 			"type": "custom"
 		},
 		{ 
@@ -1058,54 +1058,6 @@
 			},
 			"icon": "aep",
 			"type": "custom"
-		},
-		{
-			"ids": [ "vene" ],
-			"names": {
-				"en-US": "Venerabela"
-			},
-			"icon": "vene",
-			"type": "custom"
-		},
-		{
-			"ids": [ "venera1" ],
-			"names": {
-				"en-US": "Venera Hero 1"
-			},
-			"icon": "venera1",
-			"type": "custom"
-		},
-		{
-			"ids": [ "venera2" ],
-			"names": {
-				"en-US": "Venera Hero 2"
-			},
-			"icon": "venera2",
-			"type": "custom"
-		},
-		{
-			"ids": [ "venera3" ],
-			"names": {
-				"en-US": "Venera Hero 3"
-			},
-			"icon": "venera3",
-			"type": "custom"
-		},
-		{
-			"ids": [ "disgo" ],
-			"names": {
-				"en-US": "Disgorodraphy"
-			},
-			"icon": "gorod",
-			"type": "custom"
-		},
-		{
-			"ids": [ "ohm" ],
-			"names": {
-				"en-US": "ΩHM"
-			},
-			"icon": "ohm",
-			"type": "custom"
 		}
 	]
 }