PR clean

Signed-off-by: Chizkiyahu Raful <chizkiyahu.raful@arm.com>
Change-Id: Id0012d8ea8a599323e07914cf93536406e23da1c

Author: chizkiyahu

exir/_serialize/_flatbuffer_program.py

@@ -33,7 +33,6 @@
 
 _T_CLASS_CACHE: Dict[type, type] = {}
 _FIELD_NAME_CACHE: Dict[type, tuple[tuple[str, str], ...]] = {}
-_PACKERS_INSTALLED = False
 _BUFFER_ALIGNMENT: ContextVar[int] = ContextVar("_BUFFER_ALIGNMENT", default=1)
 _DELEGATE_ALIGNMENT: ContextVar[int] = ContextVar("_DELEGATE_ALIGNMENT", default=1)