Remove benchmark allocator cfg changes

Author: Dandandan

benchmarks/src/bin/dfbench.rs

@@ -20,7 +20,12 @@ use datafusion::error::Result;
 
 use clap::{Parser, Subcommand};
 
-#[cfg(all(feature = "snmalloc", not(feature = "mimalloc")))]
+#[cfg(all(feature = "snmalloc", feature = "mimalloc"))]
+compile_error!(
+    "feature \"snmalloc\" and feature \"mimalloc\" cannot be enabled at the same time"
+);
+
+#[cfg(feature = "snmalloc")]
 #[global_allocator]
 static ALLOC: snmalloc_rs::SnMalloc = snmalloc_rs::SnMalloc;
 

benchmarks/src/bin/imdb.rs

@@ -21,7 +21,12 @@ use clap::{Parser, Subcommand};
 use datafusion::error::Result;
 use datafusion_benchmarks::imdb;
 
-#[cfg(all(feature = "snmalloc", not(feature = "mimalloc")))]
+#[cfg(all(feature = "snmalloc", feature = "mimalloc"))]
+compile_error!(
+    "feature \"snmalloc\" and feature \"mimalloc\" cannot be enabled at the same time"
+);
+
+#[cfg(feature = "snmalloc")]
 #[global_allocator]
 static ALLOC: snmalloc_rs::SnMalloc = snmalloc_rs::SnMalloc;