Removes redundant XLEN clauses

Author: lenary

riscv-elf.md

@@ -247,16 +247,16 @@ While various different ABIs are technically possible, for software
 compatibility reasons it is strongly recommended to use the following
 default ABIs for specific architectures:
 
-  * **on RV64G**: LP64D for XLEN=64, with floats and doubles passed in floating
-    point registers (i.e. ELFCLASS64 and EF_RISCV_FLOAT_ABI_DOUBLE).
+  * **on RV64G**: LP64D, with floats and doubles passed in floating point
+    registers (i.e. ELFCLASS64 and EF_RISCV_FLOAT_ABI_DOUBLE).
 
     Although RV64GQ systems can technically use EF_RISCV_FLOAT_ABI_QUAD,
     it is strongly recommended to use EF_RISCV_FLOAT_ABI_DOUBLE on
     general-purpose RV64GQ systems for compatibility with standard RV64G
     software.
 
-  * **on RV32G**: ILP32D for XLEN=32, with floats and doubles passed in floating
-    point registers (i.e. ELFCLASS32 and EF_RISCV_FLOAT_ABI_DOUBLE).
+  * **on RV32G**: ILP32D, with floats and doubles passed in floating point
+    registers (i.e. ELFCLASS32 and EF_RISCV_FLOAT_ABI_DOUBLE).
 
 A future version of this specification may define an ILP32 ABI for
 RV64G, but currently this is not a supported operating mode.