Everywhere: Use AK/Math.h if applicable

AK's version should see better inlining behaviors, than the LibM one.
We avoid mixed usage for now though.

Also clean up some stale math includes and improper floatingpoint usage.

3 files changed, 1 insertions, 3 deletions

diff --git a/Userland/Utilities/du.cpp b/Userland/Utilities/du.cpp
index 4f218c9a0f..1782e56355 100644
--- a/Userland/Utilities/du.cpp
+++ b/Userland/Utilities/du.cpp
@@ -17,7 +17,6 @@
 #include <LibCore/Object.h>
 #include <inttypes.h>
 #include <limits.h>
-#include <math.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>
diff --git a/Userland/Utilities/functrace.cpp b/Userland/Utilities/functrace.cpp
index f94a7e2018..6cdc9a4389 100644
--- a/Userland/Utilities/functrace.cpp
+++ b/Userland/Utilities/functrace.cpp
@@ -17,7 +17,6 @@
 #include <LibELF/Image.h>
 #include <LibX86/Disassembler.h>
 #include <LibX86/Instruction.h>
-#include <math.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/Userland/Utilities/ntpquery.cpp b/Userland/Utilities/ntpquery.cpp
index 802d16a054..a4c36ae616 100644
--- a/Userland/Utilities/ntpquery.cpp
+++ b/Userland/Utilities/ntpquery.cpp
@@ -292,7 +292,7 @@ int main(int argc, char** argv)
     NtpTimestamp T3 = transmit_timestamp;
     NtpTimestamp T4 = destination_timestamp;
     auto timestamp_difference_in_seconds = [](NtpTimestamp from, NtpTimestamp to) {
-        return static_cast<int64_t>(to - from) / pow(2.0, 32);
+        return static_cast<i64>(to - from) >> 32;
     };
 
     // The network round-trip time of the request.