arm64: cache: Remove support for ASID-tagged VIVT I-caches

As a recent change to ARMv8, ASID-tagged VIVT I-caches are removed
retrospectively from the architecture. Consequently, we don't need to
support them in Linux either.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/mm/flush.c

@@ -65,8 +65,6 @@ void __sync_icache_dcache(pte_t pte, unsigned long addr)
 	if (!test_and_set_bit(PG_dcache_clean, &page->flags))
 		sync_icache_aliases(page_address(page),
 				    PAGE_SIZE << compound_order(page));
-	else if (icache_is_aivivt())
-		__flush_icache_all();
 }
 
 /*