remove unused jemalloc dep in main module.

Signed-off-by: Jason Volk <jason@zemos.net>

Cargo.lock

@@ -588,7 +588,6 @@ dependencies = [
  "sentry",
  "sentry-tower",
  "sentry-tracing",
- "tikv-jemallocator",
  "tokio",
  "tokio-metrics",
  "tracing",

src/main/Cargo.toml

@@ -64,9 +64,6 @@ perf_measurements = [
 	"dep:opentelemetry_sdk",
 	"dep:opentelemetry-jaeger",
 ]
-jemalloc = [
-	"dep:tikv-jemallocator",
-]
 
 [dependencies]
 conduit-router.workspace = true
@@ -101,9 +98,6 @@ sentry-tracing.optional = true
 sentry-tower.workspace = true
 sentry-tower.optional = true
 
-tikv-jemallocator.workspace = true
-tikv-jemallocator.optional = true
-
 tokio-metrics.workspace = true
 tokio-metrics.optional = true