8177817: Remove assertions in 8u that were removed by 8056124 in 9.

Reviewed-by: iveresov

src/cpu/sparc/vm/vm_version_sparc.cpp

@@ -259,49 +259,6 @@ void VM_Version::initialize() {
   // buf is started with ", " or is empty
   _features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf);
 
-  // There are three 64-bit SPARC families that do not overlap, e.g.,
-  // both is_ultra3() and is_sparc64() cannot be true at the same time.
-  // Within these families, there can be more than one chip, e.g.,
-  // is_T4() and is_T7() machines are also is_niagara().
-  if (is_ultra3()) {
-    assert(_L1_data_cache_line_size == 0, "overlap with Ultra3 family");
-    // Ref: UltraSPARC III Cu Processor
-    _L1_data_cache_line_size = 64;
-  }
-  if (is_niagara()) {
-    assert(_L1_data_cache_line_size == 0, "overlap with niagara family");
-    // All Niagara's are sun4v's, but not all sun4v's are Niagaras, e.g.,
-    // Fujitsu SPARC64 is sun4v, but we don't want it in this block.
-    //
-    // Ref: UltraSPARC T1 Supplement to the UltraSPARC Architecture 2005
-    // Appendix F.1.3.1 Cacheable Accesses
-    // -> 16-byte L1 cache line size
-    //
-    // Ref: UltraSPARC T2: A Highly-Threaded, Power-Efficient, SPARC SOC
-    // Section III: SPARC Processor Core
-    // -> 16-byte L1 cache line size
-    //
-    // Ref: Oracle's SPARC T4-1, SPARC T4-2, SPARC T4-4, and SPARC T4-1B Server Architecture
-    // Section SPARC T4 Processor Cache Architecture
-    // -> 32-byte L1 cache line size (no longer see that info on this ref)
-    //
-    // XXX - still need a T7 reference here
-    //
-    if (is_T7()) {  // T7 or newer
-      _L1_data_cache_line_size = 64;
-    } else if (is_T4()) {  // T4 or newer (until T7)
-      _L1_data_cache_line_size = 32;
-    } else {  // T1 or newer (until T4)
-      _L1_data_cache_line_size = 16;
-    }
-  }
-  if (is_sparc64()) {
-    guarantee(_L1_data_cache_line_size == 0, "overlap with SPARC64 family");
-    // Ref: Fujitsu SPARC64 VII Processor
-    // Section 4 Cache System
-    _L1_data_cache_line_size = 64;
-  }
-
   // UseVIS is set to the smallest of what hardware supports and what
   // the command line requires.  I.e., you cannot set UseVIS to 3 on
   // older UltraSparc which do not support it.