Turn BUILD_TESTING off if EXECUTORCH_BUILD_TESTS is off

CMakeLists.txt

@@ -161,6 +161,10 @@ endif()
 
 if(EXECUTORCH_BUILD_TESTS)
   include(CTest)
+else()
+  # It looks like some of our third-party deps will try to turn this on if it's
+  # not explicitly set, leading to confusing behavior.
+  set(BUILD_TESTING OFF)
 endif()
 
 add_subdirectory(third-party)
@@ -737,7 +741,10 @@ if(EXECUTORCH_BUILD_EXECUTOR_RUNNER)
     endif()
 
     set(CMAKE_EXECUTABLE_SUFFIX ".html")
-    target_link_options(executor_runner PUBLIC -sALLOW_MEMORY_GROWTH --embed-file "${WASM_MODEL_DIR}@/")
+    target_link_options(
+      executor_runner PUBLIC -sALLOW_MEMORY_GROWTH --embed-file
+      "${WASM_MODEL_DIR}@/"
+    )
   endif()
 endif()