Automatic rebaseline of codesize expectations. NFC

This is an automatic change generated by tools/maint/rebaseline_tests.py.

The following (3) test expectation files were updated by
running the tests with `--rebaseline`:

```
codesize/test_codesize_files_js_fs.json: 18247 => 18247 [+0 bytes / +0.00%]
codesize/test_codesize_files_wasmfs.json: 63892 => 63892 [+0 bytes / +0.00%]
codesize/test_codesize_hello_dylink_all.json: 855818 => 855594 [-224 bytes / -0.03%]

Average change: -0.01% (-0.03% - +0.00%)
```

Author: kleisauke

test/codesize/test_codesize_files_js_fs.json

@@ -2,9 +2,9 @@
   "a.out.js": 17866,
   "a.out.js.gz": 7289,
   "a.out.nodebug.wasm": 381,
-  "a.out.nodebug.wasm.gz": 260,
+  "a.out.nodebug.wasm.gz": 258,
   "total": 18247,
-  "total_gz": 7549,
+  "total_gz": 7547,
   "sent": [
     "a (fd_write)",
     "b (fd_read)",

test/codesize/test_codesize_files_wasmfs.json

@@ -2,9 +2,9 @@
   "a.out.js": 5372,
   "a.out.js.gz": 2527,
   "a.out.nodebug.wasm": 58520,
-  "a.out.nodebug.wasm.gz": 18225,
+  "a.out.nodebug.wasm.gz": 18224,
   "total": 63892,
-  "total_gz": 20752,
+  "total_gz": 20751,
   "sent": [
     "a (emscripten_date_now)",
     "b (emscripten_err)",

test/codesize/test_codesize_hello_dylink_all.json

@@ -1,7 +1,7 @@
 {
   "a.out.js": 268255,
-  "a.out.nodebug.wasm": 587563,
-  "total": 855818,
+  "a.out.nodebug.wasm": 587339,
+  "total": 855594,
   "sent": [
     "IMG_Init",
     "IMG_Load",
@@ -4649,7 +4649,6 @@
     "$getpwnam",
     "$getpwnam_r",
     "$getrlimit",
-    "$getrusage",
     "$gets",
     "$getservbyname",
     "$getservbyname_r",
@@ -5329,7 +5328,6 @@
     "$wait3",
     "$wait4",
     "$waitid",
-    "$waitpid",
     "$walk",
     "$warn",
     "$warnx",