refactor: Get rid of USE_MEM_VM

runtime/compiletime/memory/64bit_nix.c

@@ -1,8 +1,6 @@
 #include <assert.h>
 #include "types.h"
 
-#ifdef USE_MEM_VM
-
 // All of these are pretty generic
 INLINE float
 get_f32(int32_t offset)
@@ -162,6 +160,3 @@ get_function_from_table(uint32_t idx, uint32_t type_id)
 
 	return f.func_pointer;
 }
-#else
-#error "Incorrect memory module!"
-#endif

runtime/src/memory/64bit_nix.c

@@ -1,5 +1,3 @@
-#ifdef USE_MEM_VM
-
 #include "current_sandbox.h"
 #include "panic.h"
 #include "runtime.h"
@@ -56,7 +54,3 @@ get_memory_ptr_for_runtime(uint32_t offset, uint32_t bounds_check)
 
 	return address;
 }
-
-#else
-#error "Incorrect runtime memory module!"
-#endif