Avoid explicitly setting .length of wasmTableMirror. NFC

sbc100 · sbc100 · commit 440507729ad4 · 2025-03-06T13:36:32.000-08:00
I added this line myself back in emscripten-core#15286 but I guess I forgot that JS arrays will magically grow on their own.
diff --git a/src/lib/libcore.js b/src/lib/libcore.js
@@ -1864,7 +1864,6 @@ addToLibrary({
 #endif
     var func = wasmTableMirror[funcPtr];
     if (!func) {
-      if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
       /** @suppress {checkTypes} */
       wasmTableMirror[funcPtr] = func = wasmTable.get({{{ toIndexType('funcPtr') }}});
 #if ASYNCIFY == 2
diff --git a/test/other/codesize/test_codesize_cxx_except.gzsize b/test/other/codesize/test_codesize_cxx_except.gzsize
@@ -1 +1 @@
-9271
+9258
diff --git a/test/other/codesize/test_codesize_cxx_except.jssize b/test/other/codesize/test_codesize_cxx_except.jssize
@@ -1 +1 @@
-23841
+23811
diff --git a/test/other/codesize/test_codesize_cxx_mangle.gzsize b/test/other/codesize/test_codesize_cxx_mangle.gzsize
@@ -1 +1 @@
-9275
+9263
diff --git a/test/other/codesize/test_codesize_cxx_mangle.jssize b/test/other/codesize/test_codesize_cxx_mangle.jssize
@@ -1 +1 @@
-23841
+23811
diff --git a/test/other/codesize/test_codesize_hello_dylink.gzsize b/test/other/codesize/test_codesize_hello_dylink.gzsize
@@ -1 +1 @@
-5892
+5882
diff --git a/test/other/codesize/test_codesize_hello_dylink.jssize b/test/other/codesize/test_codesize_hello_dylink.jssize
@@ -1 +1 @@
-12932
+12904
