Revert "testsuite: ztest: Add validation of zassert strings"

This reverts commit 6deca93.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

subsys/testsuite/ztest/include/zephyr/ztest_assert.h

@@ -191,10 +191,6 @@ static inline bool z_zexpect(bool cond, const char *default_msg, const char *fil
 	_zassert_base(cond, default_msg, msg, ##__VA_ARGS__)
 
 #define zassert(cond, default_msg, ...)                                                            \
-	IF_ENABLED(__VA_OPT__(1), (                                                                \
-		if (0) {                                                                           \
-			printf(__VA_ARGS__);                                                       \
-		}))                                                                                \
 	_zassert_va(cond, default_msg, COND_CODE_1(__VA_OPT__(1), (__VA_ARGS__), (NULL)))
 
 /**
@@ -233,10 +229,6 @@ static inline bool z_zexpect(bool cond, const char *default_msg, const char *fil
 	_zassume_base(cond, default_msg, msg, ##__VA_ARGS__)
 
 #define zassume(cond, default_msg, ...)                                                            \
-	IF_ENABLED(__VA_OPT__(1), (                                                                \
-		if (0) {                                                                           \
-			printf(__VA_ARGS__);                                                       \
-		}))                                                                                \
 	_zassume_va(cond, default_msg, COND_CODE_1(__VA_OPT__(1), (__VA_ARGS__), (NULL)))
 
 /**