Remove DENO_BUILD_MODE and DENO_BUILD_PATH (#4431)

* Remove DENO_BUILD_MODE and DENO_BUILD_PATH

Also remove outdated docs related to ninja/gn.

* fix

* remove parameter to build_mode()

* remove arg parsing from benchmark.py

1 files changed, 4 insertions, 9 deletions

diff --git a/tools/util.py b/tools/util.py
index d49af71ce..c4aaa1e5b 100644
--- a/tools/util.py
+++ b/tools/util.py
@@ -204,21 +204,16 @@ def rmtree(directory):
     shutil.rmtree(directory, onerror=rm_readonly)
 
 
-def build_mode(default="debug"):
-    if "DENO_BUILD_MODE" in os.environ:
-        return os.environ["DENO_BUILD_MODE"]
-    elif "--release" in sys.argv:
+def build_mode():
+    if "--release" in sys.argv:
         return "release"
     else:
-        return default
+        return "debug"
 
 
 # E.G. "target/debug"
 def build_path():
-    if "DENO_BUILD_PATH" in os.environ:
-        return os.environ["DENO_BUILD_PATH"]
-    else:
-        return os.path.join(root_path, "target", build_mode())
+    return os.path.join(root_path, "target", build_mode())
 
 
 def parse_exit_code(s):