Redundant code flagged by static analysis

[a-wilhelm]

These lines serve no purpose and can all be deleted, all are flagged as "self assignment" warnings by static analysis:

iis2dlpc-pid/iis2dlpc_reg.c

Lines 187 to 190 in cea7c30

	else
	{
	ret = ret;
	}

iis2dlpc-pid/iis2dlpc_reg.c

Lines 334 to 337 in cea7c30

	else
	{
	ret = ret;
	}

iis2dlpc-pid/iis2dlpc_reg.c

Lines 1146 to 1149 in cea7c30

	else
	{
	ret = ret;
	}

iis2dlpc-pid/iis2dlpc_reg.c

Lines 1737 to 1740 in cea7c30

	else
	{
	ret = ret;
	}

iis2dlpc-pid/iis2dlpc_reg.c

Lines 1814 to 1817 in cea7c30

	else
	{
	ret = ret;
	}

iis2dlpc-pid/iis2dlpc_reg.c

Lines 2088 to 2091 in cea7c30

	else
	{
	ret = ret;
	}