man: Remove unnecessary empty lines

All other man pages don't have an empty line after
the "! or the older form: INCLUDE 'mpif.h'" line

Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>

ompi/mpi/man/man3/MPI_Alltoallv.3in

@@ -30,7 +30,6 @@ int MPI_Ialltoallv(const void *\fIsendbuf\fP, const int \fIsendcounts\fP[],
 .nf
 USE MPI
 ! or the older form: INCLUDE 'mpif.h'
-
 MPI_ALLTOALLV(\fISENDBUF, SENDCOUNTS, SDISPLS, SENDTYPE,
 	RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPE, COMM, IERROR\fP)
 

ompi/mpi/man/man3/MPI_Neighbor_alltoallv.3in

@@ -30,7 +30,6 @@ int MPI_Ineighbor_alltoallv(const void *\fIsendbuf\fP, const int \fIsendcounts\f
 .nf
 USE MPI
 ! or the older form: INCLUDE 'mpif.h'
-
 MPI_NEIGHBOR_ALLTOALLV(\fISENDBUF, SENDCOUNTS, SDISPLS, SENDTYPE,
 	RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPE, COMM, IERROR\fP)