Revert "perf: use jemalloc as global allocator (#18957)" (#19187)

This reverts commit 798c1ad0f1.

Reverting because this change caused a spike in memory usage, but we
can't fully realise gains from lower GC pressure from more optimal
malloc/ free provided by "jemalloc". 

We might revisit the topic in future.

Cargo.lock

@@ -784,7 +784,6 @@ dependencies = [
  "text-size",
  "text_lines",
  "thiserror",
- "tikv-jemallocator",
  "tokio",
  "tokio-util",
  "tower-lsp",
@@ -5164,26 +5163,6 @@ dependencies = [
  "syn 2.0.13",
 ]
 
-[[package]]
-name = "tikv-jemalloc-sys"
-version = "0.5.3+5.3.0-patched"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a678df20055b43e57ef8cddde41cdfda9a3c1a060b67f4c5836dfb1d78543ba8"
-dependencies = [
- "cc",
- "libc",
-]
-
-[[package]]
-name = "tikv-jemallocator"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20612db8a13a6c06d57ec83953694185a367e16945f66565e8028d2c0bd76979"
-dependencies = [
- "libc",
- "tikv-jemalloc-sys",
-]
-
 [[package]]
 name = "time"
 version = "0.3.20"

Cargo.toml

@@ -134,8 +134,6 @@ tar = "=0.4.38"
 tempfile = "3.4.0"
 thiserror = "1.0.40"
 tokio = { version = "1.28.1", features = ["full"] }
-tikv-jemallocator = "0.5.0"
-tikv-jemalloc-sys = "0.5.3"
 tokio-rustls = "0.24.0"
 tokio-util = "0.7.4"
 tower-lsp = { version = "=0.17.0", features = ["proposed"] }

cli/Cargo.toml

@@ -120,9 +120,6 @@ winapi = { workspace = true, features = ["knownfolders", "mswsock", "objbase", "
 [target.'cfg(unix)'.dependencies]
 nix.workspace = true
 
-[target.'cfg(not(target_env = "msvc"))'.dependencies]
-tikv-jemallocator.workspace = true
-
 [dev-dependencies]
 deno_bench_util.workspace = true
 dotenv = "=0.15.0"

cli/main.rs

@@ -26,13 +26,6 @@ mod version;
 mod watcher;
 mod worker;
 
-#[cfg(not(target_env = "msvc"))]
-use tikv_jemallocator::Jemalloc;
-
-#[cfg(not(target_env = "msvc"))]
-#[global_allocator]
-static GLOBAL: Jemalloc = Jemalloc;
-
 use crate::args::flags_from_vec;
 use crate::args::DenoSubcommand;
 use crate::args::Flags;