i40e: Remove unreachable code

The code at the end of i40e_read_phy_register_clause22() contained
unreachable code and redundant control statements.

This change removes the unreachable code. And deletes the redundant
goto statement and if statement.

Change-ID: I713032b1585396f40f903cbcfdea987abd874400
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_common.c

@@ -4439,19 +4439,12 @@ i40e_status i40e_read_phy_register_clause22(struct i40e_hw *hw,
 	if (status) {
 		i40e_debug(hw, I40E_DEBUG_PHY,
 			   "PHY: Can't write command to external PHY.\n");
-		goto phy_read_end;
-	}
-
-	if (!status) {
+	} else {
 		command = rd32(hw, I40E_GLGEN_MSRWD(port_num));
 		*value = (command & I40E_GLGEN_MSRWD_MDIRDDATA_MASK) >>
 			 I40E_GLGEN_MSRWD_MDIRDDATA_SHIFT;
-	} else {
-		i40e_debug(hw, I40E_DEBUG_PHY,
-			   "PHY: Can't read register value from external PHY.\n");
 	}
 
-phy_read_end:
 	return status;
 }