Remove strtoq() and strtouq().

These have been aliases for strtoll() and strtoull() since L, by
accident. We've never exposed them in the headers, and they're unused by
any apps. Let's fix the inconsistency between libc.so and its headers by
removing the aliases.

Bug: https://github.com/android/ndk/issues/1803
Test: treehugger
Change-Id: I87de7831c04b3e450a44e9f0386cacb73793e393
diff --git a/libc/bionic/strtol.cpp b/libc/bionic/strtol.cpp
index ec72b09..05b4b53 100644
--- a/libc/bionic/strtol.cpp
+++ b/libc/bionic/strtol.cpp
@@ -208,9 +208,6 @@
   return StrToI<long long, LLONG_MIN, LLONG_MAX, wchar_t>(s, end, base);
 }
 
-// Public API since L, but not in any header.
-__strong_alias(strtoq, strtoll);
-
 unsigned long strtoul(const char* s, char** end, int base) {
   return StrToU<unsigned long, ULONG_MAX, char>(s, end, base);
 }
@@ -234,6 +231,3 @@
 uintmax_t wcstoumax(const wchar_t* s, wchar_t** end, int base) {
   return StrToU<uintmax_t, UINTMAX_MAX, wchar_t>(s, end, base);
 }
-
-// Public API since L, but not in any header.
-__strong_alias(strtouq, strtoull);
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index dc1b6f6..5695dc6 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1037,12 +1037,10 @@
     strtold_l; # introduced=21
     strtoll;
     strtoll_l; # introduced=21
-    strtoq; # introduced=21
     strtoul;
     strtoull;
     strtoull_l; # introduced=21
     strtoumax;
-    strtouq; # introduced=21
     strxfrm;
     strxfrm_l; # introduced=21
     swapoff; # introduced-arm=19 introduced-arm64=21 introduced-x86=19 introduced-x86_64=21