diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go
index 4a53e2c829..927ebc2ef0 100644
--- a/internal/web3ext/web3ext.go
+++ b/internal/web3ext/web3ext.go
@@ -20,7 +20,6 @@ package web3ext
 var Modules = map[string]string{
 	"admin":    AdminJs,
 	"clique":   CliqueJs,
-	"ethash":   EthashJs,
 	"debug":    DebugJs,
 	"eth":      EthJs,
 	"miner":    MinerJs,
@@ -28,8 +27,6 @@ var Modules = map[string]string{
 	"personal": PersonalJs,
 	"rpc":      RpcJs,
 	"txpool":   TxpoolJs,
-	"les":      LESJs,
-	"vflux":    VfluxJs,
 	"dev":      DevJs,
 }
 
@@ -90,34 +87,6 @@ web3._extend({
 });
 `
 
-const EthashJs = `
-web3._extend({
-	property: 'ethash',
-	methods: [
-		new web3._extend.Method({
-			name: 'getWork',
-			call: 'ethash_getWork',
-			params: 0
-		}),
-		new web3._extend.Method({
-			name: 'getHashrate',
-			call: 'ethash_getHashrate',
-			params: 0
-		}),
-		new web3._extend.Method({
-			name: 'submitWork',
-			call: 'ethash_submitWork',
-			params: 3,
-		}),
-		new web3._extend.Method({
-			name: 'submitHashrate',
-			call: 'ethash_submitHashrate',
-			params: 2,
-		}),
-	]
-});
-`
-
 const AdminJs = `
 web3._extend({
 	property: 'admin',
@@ -790,91 +759,6 @@ web3._extend({
 });
 `
 
-const LESJs = `
-web3._extend({
-	property: 'les',
-	methods:
-	[
-		new web3._extend.Method({
-			name: 'getCheckpoint',
-			call: 'les_getCheckpoint',
-			params: 1
-		}),
-		new web3._extend.Method({
-			name: 'clientInfo',
-			call: 'les_clientInfo',
-			params: 1
-		}),
-		new web3._extend.Method({
-			name: 'priorityClientInfo',
-			call: 'les_priorityClientInfo',
-			params: 3
-		}),
-		new web3._extend.Method({
-			name: 'setClientParams',
-			call: 'les_setClientParams',
-			params: 2
-		}),
-		new web3._extend.Method({
-			name: 'setDefaultParams',
-			call: 'les_setDefaultParams',
-			params: 1
-		}),
-		new web3._extend.Method({
-			name: 'addBalance',
-			call: 'les_addBalance',
-			params: 2
-		}),
-	],
-	properties:
-	[
-		new web3._extend.Property({
-			name: 'latestCheckpoint',
-			getter: 'les_latestCheckpoint'
-		}),
-		new web3._extend.Property({
-			name: 'checkpointContractAddress',
-			getter: 'les_getCheckpointContractAddress'
-		}),
-		new web3._extend.Property({
-			name: 'serverInfo',
-			getter: 'les_serverInfo'
-		}),
-	]
-});
-`
-
-const VfluxJs = `
-web3._extend({
-	property: 'vflux',
-	methods:
-	[
-		new web3._extend.Method({
-			name: 'distribution',
-			call: 'vflux_distribution',
-			params: 2
-		}),
-		new web3._extend.Method({
-			name: 'timeout',
-			call: 'vflux_timeout',
-			params: 2
-		}),
-		new web3._extend.Method({
-			name: 'value',
-			call: 'vflux_value',
-			params: 2
-		}),
-	],
-	properties:
-	[
-		new web3._extend.Property({
-			name: 'requestStats',
-			getter: 'vflux_requestStats'
-		}),
-	]
-});
-`
-
 const DevJs = `
 web3._extend({
 	property: 'dev',