diff --git a/defs/support.json b/defs/support.json
index d4c679716a..4bd81189ee 100644
--- a/defs/support.json
+++ b/defs/support.json
@@ -13,7 +13,6 @@
       "bitcoin:BTX": true,
       "bitcoin:CPC": true,
       "bitcoin:DASH": true,
-      "bitcoin:DCR": true,
       "bitcoin:DGB": true,
       "bitcoin:DNR": true,
       "bitcoin:DOGE": true,
@@ -23,7 +22,6 @@
       "bitcoin:FTC": true,
       "bitcoin:GAME": true,
       "bitcoin:GIN": true,
-      "bitcoin:GRS": true,
       "bitcoin:KMD": true,
       "bitcoin:KOTO": true,
       "bitcoin:LTC": true,
@@ -34,13 +32,10 @@
       "bitcoin:NMC": true,
       "bitcoin:PIVX": true,
       "bitcoin:PTC": true,
-      "bitcoin:QTUM": true,
       "bitcoin:RVN": true,
-      "bitcoin:SMART": true,
       "bitcoin:TAZ": true,
       "bitcoin:TBCH": true,
       "bitcoin:TBTG": true,
-      "bitcoin:TDCR": true,
       "bitcoin:TEST": true,
       "bitcoin:VIA": true,
       "bitcoin:VTC": true,
@@ -52,11 +47,8 @@
       "bitcoin:ZEC": true,
       "bitcoin:ZEN": true,
       "bitcoin:tDASH": true,
-      "bitcoin:tGRS": true,
       "bitcoin:tLTC": true,
       "bitcoin:tPIVX": true,
-      "bitcoin:tQTUM": true,
-      "bitcoin:tSMART": true,
       "bitcoin:tXZC": true,
       "eth:AKA": true,
       "eth:ATH": true,