sh: Kill off timer clock strings for legacy CPG parts.

Now with the lookup aliases in place there is no longer any need to
provide the clock string, kill it off for all legacy CPG CPUs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/sh4/setup-sh7750.c

@@ -68,7 +68,6 @@ static struct platform_device scif1_device = {
 static struct sh_timer_config tmu0_platform_data = {
 	.channel_offset = 0x04,
 	.timer_bit = 0,
-	.clk = "peripheral_clk",
 	.clockevent_rating = 200,
 };
 
@@ -97,7 +96,6 @@ static struct platform_device tmu0_device = {
 static struct sh_timer_config tmu1_platform_data = {
 	.channel_offset = 0x10,
 	.timer_bit = 1,
-	.clk = "peripheral_clk",
 	.clocksource_rating = 200,
 };
 
@@ -126,7 +124,6 @@ static struct platform_device tmu1_device = {
 static struct sh_timer_config tmu2_platform_data = {
 	.channel_offset = 0x1c,
 	.timer_bit = 2,
-	.clk = "peripheral_clk",
 };
 
 static struct resource tmu2_resources[] = {
@@ -159,7 +156,6 @@ static struct platform_device tmu2_device = {
 static struct sh_timer_config tmu3_platform_data = {
 	.channel_offset = 0x04,
 	.timer_bit = 0,
-	.clk = "peripheral_clk",
 };
 
 static struct resource tmu3_resources[] = {
@@ -187,7 +183,6 @@ static struct platform_device tmu3_device = {
 static struct sh_timer_config tmu4_platform_data = {
 	.channel_offset = 0x10,
 	.timer_bit = 1,
-	.clk = "peripheral_clk",
 };
 
 static struct resource tmu4_resources[] = {