[test][AArch64][CodeGen] Delete redundant CHECK-PIC lines

Since https://reviews.llvm.org/D91734, CodeGen/AArch64/elf-globals-static.ll
test contains several `CHECK-PIC` lines. They do not seem to bring any
value since there are no FileCheck run lines checking against this
prefix. The right place for such tests should be elf-globals-pic.ll,
which already contains check lines being deleted in this commit.
Both elf-globals-pic.ll and elf-globals-static.ll were created after
splitting arm64-elf-globals.ll in 6dbd0ea,
and having `CHECK-PIC` lines in elf-globals-static.ll seems like an
issue occurred because of git thinking that elf-globals-pic.ll is a new
file and elf-global-static.ll is a rename of arm64-elf-globals.ll

Author: kovdan01

llvm/test/CodeGen/AArch64/elf-globals-static.ll

@@ -15,11 +15,6 @@ define i8 @test_i8(i8 %new) {
 ; CHECK: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]
 ; CHECK: strb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]
 
-; CHECK-PIC-LABEL: test_i8:
-; CHECK-PIC: adrp x[[HIREG:[0-9]+]], :got:var8
-; CHECK-PIC: ldr x[[VAR_ADDR:[0-9]+]], [x[[HIREG]], :got_lo12:var8]
-; CHECK-PIC: ldrb {{w[0-9]+}}, [x[[VAR_ADDR]]]
-
 ; CHECK-FAST-LABEL: test_i8:
 ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var8
 ; CHECK-FAST: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]