fix minor issue with array length condition in object storage traces

[guykhazma]

This PR fixes a minor issue with the condition checking for GET requests without range reads.

In addition, since the reader filters only GET requests, I am not sure that the condition is needed at all, I haven't seen any GET request in the traces without range reads so it seems that this condition was never met anyway. Maybe @ohadeytan knows if there are such cases.

[ohadeytan]

Good catch. I believe they weren't such cases, so the condition is indeed redundant.

[ben-manes]

nice, can you delete / rewrite the code @guykhazma to what you think is a clean and correct parser? I'll merge once you give me the okay.

[guykhazma]

@ben-manes done, I have removed the unnecessary code, thanks.