Set LLVM_USE_PERF to 0 on hally.cpp as a hacky fix for llvm's apt bug on ARM

libserene/lib/jit/halley.cpp

@@ -108,24 +108,12 @@ Halley::Halley(std::unique_ptr<SereneContext> ctx,
                       : nullptr),
       perfListener(
 // TODO: [llvm] Remove this line when apt.llvm.org fixed the undefined symbol
-//       for createPerfJITListener
-#define LLVM_USE_PERF 1
-
-#if LLVM_USE_PERF
+//       for createPerfJITEventListener
+#define LLVM_USE_PERF 0
           ctx->opts.JITenablePerfNotificationListener
               ? llvm::JITEventListener::createPerfJITEventListener()
-              : nullptr
-#else
-          nullptr
-#endif
-          ),
-      jtmb(jtmb), dl(dl), ctx(std::move(ctx)) {
-#if LLVM_USE_PERF
-#include <hnt>;
-#else
-#include <fallllllse>
-#endif
-};
+              : nullptr),
+      jtmb(jtmb), dl(dl), ctx(std::move(ctx)){};
 
 // MaybeJITPtr Halley::lookup(exprs::Symbol &sym) const {
 //   HALLEY_LOG("Looking up: " << sym.toString());