Remove debugging in gspawn.c

They were added in commit 61f54591. I
don't believe this was intended.
12 jobs for glib-2-58 in 24 minutes and 28 seconds (queued for 2 minutes and 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #107489
cross-android_api21_arm64

00:01:26

passed #107490
cross-android_api28_arm64

00:01:26

passed #107491
cross-mingw64

00:01:57

failed #122500
fedora-autotools-x86_64

00:07:15

passed #107487
fedora-x86_64

00:04:23

manual #107494
freebsd-11 allowed to fail manual
freebsd-11-x86_64
passed #107492
win32
msys2-mingw32

00:07:33

passed #107493
win32
vs2017-x64

00:05:12

failed #115194
fedora-autotools-x86_64

00:03:20

failed #113449
fedora-autotools-x86_64

00:03:08

failed #107488
fedora-autotools-x86_64

00:03:09

 
  Coverage
skipped #107495
coverage
 
Name Stage Failure
failed
fedora-autotools-x86_64 Build
_build/glib/glibconfig.h: found 1 matching files   
_build/*.log: found 3 matching files
_build/*/*.log: found 2 matching files
_build/*/*/*.log: found 91 matching files
WARNING: _build/*/*/*/*.log: no matching files
WARNING: _build/*/*/*/*/*.log: no matching files
WARNING: _build/*/*/*/*/*/*.log: no matching files
Uploading artifacts to coordinator... ok id=122500 responseStatus=201 Created token=jfZ8-xjh
ERROR: Job failed: exit code 1