chore(php-shim): drop the ob_start()/ob_get_clean() ports

Output buffering captures whatever the PHP interpreter would echo to
stdout. The shim routes no output through a buffer, so these functions
could never capture anything and stayed todo!(). Record the gap in
docs/known-incompatibilities.md instead.

2 files changed, 0 insertions, 11 deletions

diff --git a/crates/shirabe-php-shim/src/lib.rs b/crates/shirabe-php-shim/src/lib.rs
index 7d22633c..607a8887 100644
--- a/crates/shirabe-php-shim/src/lib.rs
+++ b/crates/shirabe-php-shim/src/lib.rs
@@ -11,7 +11,6 @@ mod json;
 mod math;
 mod net;
 mod openssl;
-mod output;
 mod phar;
 mod preg;
 mod process;
@@ -38,7 +37,6 @@ pub use json::*;
 pub use math::*;
 pub use net::*;
 pub use openssl::*;
-pub use output::*;
 pub use phar::*;
 pub use preg::*;
 pub use process::*;
diff --git a/crates/shirabe-php-shim/src/output.rs b/crates/shirabe-php-shim/src/output.rs
deleted file mode 100644
index d4d83200..00000000
--- a/crates/shirabe-php-shim/src/output.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-// PHP output buffering captures everything the interpreter would echo to stdout. The shim has no
-// general echo-to-buffer routing, so a buffer here would silently capture nothing.
-pub fn ob_start() -> bool {
-    todo!()
-}
-
-pub fn ob_get_clean() -> Option<String> {
-    todo!()
-}