syscalls/msync01: Remove useless getpagesize() check

Unlike sysconf() the getpagesize() call cannot fail.

This fixes compiler warning integer expressions of different signedness.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
diff --git a/testcases/kernel/syscalls/msync/msync01.c b/testcases/kernel/syscalls/msync/msync01.c
index 565d5fe..121fd86 100644
--- a/testcases/kernel/syscalls/msync/msync01.c
+++ b/testcases/kernel/syscalls/msync/msync01.c
@@ -159,9 +159,6 @@
 
 	TEST_PAUSE;
 
-	if ((page_sz = getpagesize()) == -1)
-		tst_brkm(TBROK | TERRNO, NULL, "getpagesize failed");
-
 	tst_tmpdir();
 
 	if ((fildes = open(TEMPFILE, O_RDWR | O_CREAT, 0666)) < 0)
diff --git a/testcases/kernel/syscalls/msync/msync02.c b/testcases/kernel/syscalls/msync/msync02.c
index 73a6123..c7b7e9e 100644
--- a/testcases/kernel/syscalls/msync/msync02.c
+++ b/testcases/kernel/syscalls/msync/msync02.c
@@ -113,9 +113,6 @@
 
 	TEST_PAUSE;
 
-	if ((page_sz = getpagesize()) == -1)
-		tst_brkm(TBROK | TERRNO, NULL, "getpagesize failed");
-
 	tst_tmpdir();
 
 	if ((fildes = open(TEMPFILE, O_RDWR | O_CREAT, 0666)) < 0)