Remove duplicate llguidance entry in requirements

Signed-off-by: Russell Bryant <rbryant@redhat.com>

Author: russellb

requirements/common.txt

@@ -22,7 +22,6 @@ llguidance >= 0.7.9, < 0.8.0; platform_machine == "x86_64" or platform_machine =
 outlines == 0.1.11
 lark == 1.2.2
 xgrammar == 0.1.16; platform_machine == "x86_64" or platform_machine == "aarch64"
-llguidance==0.7.5
 typing_extensions >= 4.10
 filelock >= 3.16.1 # need to contain https://github.com/tox-dev/filelock/pull/317
 partial-json-parser # used for parsing partial JSON outputs