quick switch to disable SkVM JIT

Change-Id: I4d4a8409163c2b2d1773e395a73857626c45d406
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/251752
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>

src/core/SkVM.cpp

@@ -1458,7 +1458,7 @@ namespace skvm {
         , fOriginalProgram(instructions)
     {
         this->setupInterpreter(instructions);
-    #if defined(SKVM_JIT)
+    #if 1 && defined(SKVM_JIT)
         this->setupJIT(instructions, debug_name);
     #endif
     }