Remove reference to deprecated RPC call in build instructions

Author: bitstein

doc/build-osx.md

@@ -73,8 +73,7 @@ disable-wallet mode with:
 
 In this case there is no dependency on Berkeley DB 4.8.
 
-Mining is also possible in disable-wallet mode, but only using the `getblocktemplate` RPC
-call not `getwork`.
+Mining is also possible in disable-wallet mode using the `getblocktemplate` RPC call.
 
 Running
 -------

doc/build-unix.md

@@ -234,8 +234,7 @@ disable-wallet mode with:
 
 In this case there is no dependency on Berkeley DB 4.8.
 
-Mining is also possible in disable-wallet mode, but only using the `getblocktemplate` RPC
-call not `getwork`.
+Mining is also possible in disable-wallet mode using the `getblocktemplate` RPC call.
 
 Additional Configure Flags
 --------------------------
@@ -284,4 +283,3 @@ To build executables for ARM:
 
 
 For further documentation on the depends system see [README.md](../depends/README.md) in the depends directory.
-