[libc] [llvm] [libc] Make RPC server handling header only (PR #131205)

[Joseph Huber via llvm-commits]

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@@ -184,6 +184,7 @@ but the following example shows how it can be used by a standard user.
 
   #include <shared/rpc.h>
   #include <shared/rpc_opcodes.h>
+  #include <shared/rpc_server.h>
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jhuber6 wrote:

Yeah, mentioned that in the updated docs. Might make a small library if I want to export it since it'd just need to define that function as a linkable symbol instead.

https://github.com/llvm/llvm-project/pull/131205