ARM: tegra: remove tegra_chip_uid()

Following commit f5b38c5f "crypto: tegra - use kernel entropy instead
of ad-hoc", this function is no longer used. It's also only accurate
for Tegra20 and not later SoCs. So, remove it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

arch/arm/mach-tegra/fuse.c

@@ -155,13 +155,3 @@ void tegra_init_fuse(void)
 		tegra_sku_id, tegra_cpu_process_id,
 		tegra_core_process_id);
 }
-
-unsigned long long tegra_chip_uid(void)
-{
-	unsigned long long lo, hi;
-
-	lo = tegra_fuse_readl(FUSE_UID_LOW);
-	hi = tegra_fuse_readl(FUSE_UID_HIGH);
-	return (hi << 32ull) | lo;
-}
-EXPORT_SYMBOL(tegra_chip_uid);