[docs] Remove mention of --cfg ndebug

The "ndebug" cfg directive was removed in #1444.

diff --git a/src/doc/manifest.md b/src/doc/manifest.md
index 909a977bd7ec26d02edadab978bc720ed2d25f2c..dd3dcf918b5b0808b1f2d81cd71e6e8705fff75f 100644 (file)
--- a/src/doc/manifest.md
+++ b/src/doc/manifest.md
@@ -173,7 +173,7 @@ along with the defaults for each profile.
 # The development profile, used for `cargo build`
 [profile.dev]
 opt-level = 0  # Controls the --opt-level the compiler builds with
-debug = true   # Controls whether the compiler passes -g or `--cfg ndebug`
+debug = true   # Controls whether the compiler passes `-g`
 rpath = false  # Controls whether the compiler passes `-C rpath`
 lto = false    # Controls `-C lto` for binaries and staticlibs
 debug-assertions = true  # Controls whether debug assertions are enabled