<complex.h>: stop using __INTRODUCED_IN_(32|64).

Although the existing annotations were strictly true (see
https://github.com/android/ndk/issues/1888#issuecomment-1581773348 for
the gory details), given the Play Store requirement that 32-bit code
must have a 64-bit version, it's not obviously useful to offer a
function for 32-bit before 64-bit.

Test: treehugger
Change-Id: I8ca11b874c26dfaa632690f510cb5409d95012e9
diff --git a/libc/include/complex.h b/libc/include/complex.h
index 6bbeda3..f205abd 100644
--- a/libc/include/complex.h
+++ b/libc/include/complex.h
@@ -117,7 +117,7 @@
 /* 7.3.8.1 The cabs functions */
 double cabs(double complex __z) __INTRODUCED_IN(23);
 float cabsf(float complex __z) __INTRODUCED_IN(23);
-long double cabsl(long double complex __z) __INTRODUCED_IN_32(21) __INTRODUCED_IN_64(23);
+long double cabsl(long double complex __z) __INTRODUCED_IN(23);
 /* 7.3.8.2 The cpow functions */
 double complex cpow(double complex __x, double complex __z) __INTRODUCED_IN(26);
 float complex cpowf(float complex __x, float complex __z) __INTRODUCED_IN(26);
@@ -125,7 +125,7 @@
 /* 7.3.8.3 The csqrt functions */
 double complex csqrt(double complex __z) __INTRODUCED_IN(23);
 float complex csqrtf(float complex __z) __INTRODUCED_IN(23);
-long double complex csqrtl(long double complex __z) __INTRODUCED_IN_32(21) __INTRODUCED_IN_64(23);
+long double complex csqrtl(long double complex __z) __INTRODUCED_IN(23);
 
 /* 7.3.9 Manipulation functions */
 /* 7.3.9.1 The carg functions */
@@ -143,7 +143,7 @@
 /* 7.3.9.4 The cproj functions */
 double complex cproj(double complex __z) __INTRODUCED_IN(23);
 float complex cprojf(float complex __z) __INTRODUCED_IN(23);
-long double complex cprojl(long double complex __z) __INTRODUCED_IN_32(21) __INTRODUCED_IN_64(23);
+long double complex cprojl(long double complex __z) __INTRODUCED_IN(23);
 /* 7.3.9.5 The creal functions */
 double creal(double complex __z) __INTRODUCED_IN(23);
 float crealf(float complex __z) __INTRODUCED_IN(23);