mailmap: update entry for Manivannan Sadhasivam

Remove the map for Linaro id as it is still in use and I want to use it
for submitting patches.  Otherwise, git uses kernel.org as the author id
for patches created using Linaro id.

Link: https://lkml.kernel.org/r/20240109-update-mailmap-v1-1-bf7a39f15fb7@linaro.orgSigned-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

.mailmap

@@ -363,7 +363,6 @@ Maheshwar Ajja <quic_majja@quicinc.com> <majja@codeaurora.org>
 Malathi Gottam <quic_mgottam@quicinc.com> <mgottam@codeaurora.org>
 Manikanta Pubbisetty <quic_mpubbise@quicinc.com> <mpubbise@codeaurora.org>
 Manivannan Sadhasivam <mani@kernel.org> <manivannanece23@gmail.com>
-Manivannan Sadhasivam <mani@kernel.org> <manivannan.sadhasivam@linaro.org>
 Manoj Basapathi <quic_manojbm@quicinc.com> <manojbm@codeaurora.org>
 Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
 Marc Zyngier <maz@kernel.org> <marc.zyngier@arm.com>