ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors

Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no
longer need/use the clock framework code for filling up CPUfreq
tables.  Remove it.

Removing this code also eliminates build errors when CPU_FREQ_TABLE
support is not enabled.

Thanks to Russell King for pointing out the parts I missed under
plat-omap in the original version and also pointing out the build
errors when CPUFREQ_TABLE support was not enabled.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-omap2/clock.h

@@ -146,14 +146,6 @@ extern const struct clksel_rate gpt_sys_rates[];
 extern const struct clksel_rate gfx_l3_rates[];
 extern const struct clksel_rate dsp_ick_rates[];
 
-#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ)
-extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
-extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
-#else
-#define omap2_clk_init_cpufreq_table	0
-#define omap2_clk_exit_cpufreq_table	0
-#endif
-
 extern const struct clkops clkops_omap2_iclk_dflt_wait;
 extern const struct clkops clkops_omap2_iclk_dflt;
 extern const struct clkops clkops_omap2_iclk_idle_only;