diff --git a/src/lib/libpthread.js b/src/lib/libpthread.js
index cb6497e53eac0..5c1c7a20426ca 100644
--- a/src/lib/libpthread.js
+++ b/src/lib/libpthread.js
@@ -22,9 +22,6 @@
 #if EVAL_CTORS
 #error "EVAL_CTORS is not compatible with pthreads yet (passive segments)"
 #endif
-#if EXPORT_ES6 && (MIN_FIREFOX_VERSION < 114 || MIN_CHROME_VERSION < 80 || MIN_SAFARI_VERSION < 150000)
-#error "internal error, feature_matrix should not allow this"
-#endif
 
 {{{
 #if MEMORY64
diff --git a/src/lib/libwasm_worker.js b/src/lib/libwasm_worker.js
index 88787a7947712..ba0688f1b0b36 100644
--- a/src/lib/libwasm_worker.js
+++ b/src/lib/libwasm_worker.js
@@ -18,9 +18,6 @@
 #if WASM2JS && MODULARIZE
 #error "-sWASM=0 + -sMODULARIZE + -sWASM_WORKERS is not supported"
 #endif
-#if EXPORT_ES6 && (MIN_FIREFOX_VERSION < 114 || MIN_CHROME_VERSION < 80 || MIN_SAFARI_VERSION < 150000)
-#error "internal error, feature_matrix should not allow this"
-#endif
 
 #endif // ~WASM_WORKERS