sh_eth: kill useless *switch* defaults

The driver often has the *default* cases doing nothing in the *switch*
statements with  the integer expressions -- remove them.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 0a150b2..a276733 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -500,8 +500,6 @@
 	case 1000: /* 1000BASE */
 		sh_eth_write(ndev, GECMR_1000, GECMR);
 		break;
-	default:
-		break;
 	}
 }
 
@@ -592,8 +590,6 @@
 	case 100:/* 100BASE */
 		sh_eth_modify(ndev, ECMR, ECMR_ELB, ECMR_ELB);
 		break;
-	default:
-		break;
 	}
 }
 
@@ -658,8 +654,6 @@
 	case 100:/* 100BASE */
 		sh_eth_modify(ndev, ECMR, ECMR_RTM, ECMR_RTM);
 		break;
-	default:
-		break;
 	}
 }
 
@@ -698,8 +692,6 @@
 	case 100:/* 100BASE */
 		sh_eth_write(ndev, 1, RTRATE);
 		break;
-	default:
-		break;
 	}
 }
 
@@ -767,8 +759,6 @@
 	case 1000: /* 1000BASE */
 		sh_eth_write(ndev, 0x00000020, GECMR);
 		break;
-	default:
-		break;
 	}
 }
 
@@ -2917,8 +2907,6 @@
 	case SH_ETH_REG_FAST_SH3_SH2:
 		reg_offset = sh_eth_offset_fast_sh3_sh2;
 		break;
-	default:
-		break;
 	}
 
 	return reg_offset;