Fix Conan inspect when remote.json is not created

[uilianries]

Changelog: Fix: inspect command can be executed without remote.json (#6558)
Docs: Omit

fixes #6558

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[luka-papez]

Has this really been fixed? I am using 1.41.0 and trying to do:
conan inspect --raw version conanfile.py (on any conanfile)
which results in:
ERROR: Error loading conanfile at '/home/gradle/conanfile.py': No remote defined when remotes.json does not exits.

Its not a big deal as I can still get the version by simply grepping the conanfile, but just wanted to double check.