qcacld-3.0: Remove unnecessary get of global context in TXRX
Currently ol_rx_pkt_dump_call() calls cds_get_global_context() to get
the global context. At one time this was necessary since the global
context was required to get the module-specific context. However the
global context is no longer required, so remove the unnecessary
retrieval of the global context.
Change-Id: I8a2e66252bfd445151575502b06b132866a286fe
CRs-Fixed: 2102494