remove 6 merchants

- localcoin.is (closes #1711)
- remove trovemat.com (closes #1710)
- remove swaplab (closes #1708)
- remove liberalcoins (closes #1706)
- remove alfacashier (closes #1704)
- remove coincut (closes #1700)

_data/merchants.yml

@@ -3,8 +3,6 @@
   merchants:
     - name: AgoraDesk - P2P OTC trading platform, includes Monero options
       url: https://agoradesk.com
-    - name: Alfacashier
-      url: https://www.alfacashier.com/
     - name: BestChange
       url: https://www.bestchange.com
     - name: Bitci (XMR/BTCI, XMR/TRY, XMR/CHFT)
@@ -23,8 +21,6 @@
       url: https://changehero.io/
     - name: ChangeNOW
       url: https://changenow.io
-    - name: CoinCut (OTC)
-      url: https://www.coincut.com
     - name: CoinSwitch.co
       url: https://www.coinswitch.co
     - name: DV Chain (OTC) - Cryptocurrency OTC desk that offers buying and selling of Monero
@@ -51,10 +47,6 @@
       url: https://karsha.biz/
     - name: Kraken (XMRUSD, XMREUR, XMRBTC)
       url: https://www.kraken.com/
-    - name: Liberalcoins
-      url: https://liberalcoins.com/
-    - name: LocalCoin.is - LLC/XMR
-      url: https://localcoin.is/
     - name: LocalMonero (P2P exchange)
       url: https://localmonero.co/
     - name: Magnetic Exchange
@@ -81,10 +73,6 @@
       url: https://swapzone.io/
     - name: Tux Exchange
       url: https://www.tuxexchange.com/trade?coin=XMR&market=BTC
-    - name: Trovemat.com (ATM)
-      url: https://trovemat.com/
-    - name: Swaplab
-      url: https://swaplab.cc/
     - name: xChange.me - Fully anonymous cryptocurrency exchanger
       url: https://xchange.me
 - category: Payment Gateways