[dynarmic] remove dead-code interpreter (#3547)

interpreter was never called in practice and doesn't do anything other than just crash

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3547
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

docs/dynarmic/Design.md

@@ -286,15 +286,6 @@ Exclusive OR (i.e.: XOR)
 
 Memory access.
 
-### Terminal: Interpret
-
-```c++
-SetTerm(IR::Term::Interpret{next})
-```
-
-This terminal instruction calls the interpreter, starting at `next`.
-The interpreter must interpret exactly one instruction.
-
 ### Terminal: ReturnToDispatch
 
 ```c++

docs/dynarmic/README.md

@@ -117,11 +117,6 @@ public:
         MemoryWrite32(vaddr + 4, u32(value >> 32));
     }
 
-    void InterpreterFallback(u32 pc, size_t num_instructions) override {
-        // This is never called in practice.
-        std::terminate();
-    }
-
     void CallSVC(u32 swi) override {
         // Do something.
     }