[CSL-2201] Remove `setWalletTxMeta`
[CSL-2201] Remove `setWalletTxMeta`

to fix `Defined but not used` warning

input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl