[MIPS] Remove explicit masks from assembly code

tests/math/test_snan_no_signal_mips.S

Index: tests/math/test_snan_no_signal_mips.S
diff --git a/tests/math/test_snan_no_signal_mips.S b/tests/math/test_snan_no_signal_mips.S
index 51b67eac1de83b65364c6805a7c3a543e4489fee..c7a9d583c04043b4416ab357ff87fb3ee1265f87 100644
--- a/tests/math/test_snan_no_signal_mips.S
+++ b/tests/math/test_snan_no_signal_mips.S
@@ -4,27 +4,18 @@
  * found in the LICENSE file.
  */
 
-#define STORE_MASK $t7
-#define JUMP_MASK $t6
-
         .p2align 4
         .globl try_operations_with_snans
 try_operations_with_snans:
         addiu $sp, $sp, -8
-        and   $sp, $sp, STORE_MASK
-        li $v0, 0x7fc00000
-        sw $v0, 0($sp)
-
-        lwc1 $f1, 0($sp)
-        lwc1 $f0, 0($sp)
+        li    $v0, 0x7fc00000
+        sw    $v0, 0($sp)
+        lwc1  $f1, 0($sp)
+        lwc1  $f0, 0($sp)
         add.s $f2, $f1, $f0
         sub.s $f2, $f1, $f0
-
         mul.s $f2, $f1, $f0
         div.s $f2, $f1, $f0
         addiu $sp, $sp, 8
-        and   $sp, $sp, STORE_MASK
-
-        and $ra, $ra, JUMP_MASK
-        jr $ra
+        jr    $ra
         nop